Answers
Explanation:
object tends to vibrate at one particular frequency called the natural frequency. The measure of natural frequency depends on the composition of the object, its size, structure, weight and shape.
A phenomenon , in which the natural frequency of a body becomes equal to the frequency of an external periodic force and amplitude of vibrations becomes very large is called resonance .
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Related Questions
Larry the Rock was lonely for multiple years. The inertia that Larry possessed intimated those who walked past by it, therefore people never moved Larry.
Larry constantly watched people and cars accelerate past him but sadly he has never had the opportunity to experience acceleration.
But one day, David decides to let Larry experience acceleration and tried to push him. His friend Pancho heard about this and decided to help out. But
because Pancho was not listening in Physics class, he was pushing Larry from the opposite side of David with an equal amount of force and Larry was sad
he still did not get to move.
What type of Equilibrium is Larry going through?
O Static Equilibrium
O Kinetic Equilibrium
O Dynamic Equilibrium
O Geo Equilibrium
O Francesca Equilibrium
Answers
First option is correct.Larry the Rock is going through Static Equilibrium.
In this situation, Larry is at rest and remains stationary despite the forces acting on him. While David and Pancho are exerting equal forces from opposite sides, their forces cancel each other out, resulting in a net force of zero. As a result, Larry does not move or experience any acceleration.
Static equilibrium occurs when an object's forces and torques balance each other, leading to a stable, balanced state. In this case, the forces exerted by David and Pancho are equal in magnitude and opposite in direction, creating a condition where the resultant force is zero. As a result, Larry remains in a state of rest, unable to experience any movement or acceleration.Therefore, the type of equilibrium that Larry the Rock is going through is Static Equilibrium.
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If a football quarterback runs into and tackles another player by grabbing onto them, what type of collision would this technically be?
a. Elastic
b. Inelastic
Which of the following would be an example of a closed system?
a. A person pushing a refrigerator box across a rough floor
b. A water bucket being pulled up by rope from a well
c. A rolling oil drum across a smooth, frictionless marble floor
d. A large moving rock slowing down while ploughing through loose sand
Answers
''If a football quarterback runs into and tackles another player by grabbing onto them'' is Elastic collision. A closed system is a rolling oil drum across a smooth, frictionless marble floor.
What is meant by Elastic collision?A collision between two bodies in physics is referred to as an elastic collision if their combined kinetic energy stays constant. There is no net conversion of kinetic energy into other forms, such as heat, noise, or potential energy, in an ideal, fully elastic collision.When two small objects collide, the kinetic energy of the collision is first transformed into the potential energy of an attractive or repulsive force between the particles. (when the particles move against this force, that is, when the angle between the force and the relative velocity is acute), and then this potential energy is transformed back into the kinetic energy of the collision (when the particles move with this force, i.e. the angle between the force and the relative velocity is acute).Learn more about Elastic collision refer to :
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Extreme-sports enthusiasts have been known to jump off the top of El Capitan, a sheer granite cliff of height 910 min Yosemite National Park. Assume a jumper runs horizontally off the top of El Capitan with speed 4.0 m/sand enjoys a free fall until she is h = 150 m above the valley floor, at which time she opens her parachute.(Figure 1) A) Ignoring air resistance how long is the jumper in freefall? Please show units B) How far from the cliff is the jumper when she opens her chute? Please show units
Answers
(A) The jumper is in freefall for approximately 5.43 seconds. (B) The jumper is about 21.7 meters away from the cliff when she opens her chute.
(A) Ignoring air resistance, we can use the equations of motion to find how long the jumper is in freefall. We know that the initial vertical velocity is zero, the acceleration due to gravity is -9.81 m/s² (downward), and the displacement is h = 150 m.
The following is the motion equation for vertical displacement:
\(h = (1/2)gt^2\)
Solving for time:-
\(t = \sqrt{(2h/g)}\)
\(t = \sqrt{(2*150/9.81)}\)
t ≈ 5.43 s
Therefore, the jumper is in freefall for approximately 5.43 seconds.
(B) To find how far from the cliff the jumper is when she opens her chute, we can use the equation of motion for horizontal displacement:
d = vt
here,
d is horizontal displacement,
v is horizontal velocity (which is constant at 4.0 m/s), and
t is time in freefall (which we just found to be approximately 5.43 s).
So,
d = vt
d = (4.0 m/s)(5.43 s)
d ≈ 21.7 m
Therefore, the jumper is about 21.7 meters away from the cliff when she opens her chute.
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Use the drop-down menus to complete each sentence.
The number of half-lives changes. This is the _______ variable.
The number of radioactive atoms changes due to the number of half-lives. The number of radioactive atoms is
therefore the _______
variable.
Answers
Answer:
Independent, then dependent
Explanation:
Just took this on Edge 2021
Thomas the Train chugs along at 2 m/s. Thomas needs to go faster so more coal is shoveled into his engine and he accelerates for 10 seconds until he is going 4.33 m/s. What is Thomas' acceleration?
Answers
The acceleration of Thomas is 0.233 m/s^2.
Acceleration is the rate of change of velocity. Thomas the Train chugs along at a velocity of 2 m/s.
Thomas needs to go faster so more coal is shoveled into his engine and he accelerates for 10 seconds until he is going 4.33 m/s.
We are to find the acceleration of Thomas.
The formula for acceleration is given as :
acceleration = (final velocity - initial velocity) / time
In the given problem, the initial velocity of Thomas, u = 2 m/s.
The final velocity of Thomas, v = 4.33 m/s The time for which Thomas accelerates, t = 10 s.
Therefore, the acceleration of Thomas will be given as:
a = (v - u) / ta = (4.33 - 2) / 10s => 2.33 / 10s => 0.233 m/s^2
Thus, the acceleration of Thomas is 0.233 m/s^2.
To summarize, the acceleration of Thomas is 0.233 m/s^2.
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500000000 in standard form
Answers
Answer:
5.0 x 10^8
Explanation:
because u moved it 8 times to it places
A 1.0 kg cube of ice is dropped into 1.0 kg of water, and when equilibrium is reached, there are 2.0 kg of ice at 0.0° C. The initial temperature of the water was 0°C. What was the original temperature of the ice? (Cw = 4186 J/kgo°C, c; = 2093 J/kg.°C, and If = 3.3 × 105 J/kg)
Answers
The initial temperature of the water was 0°C and the original temperature of the ice was -78.8°C.
First, we need to determine how much heat was transferred from the water to the ice to melt the ice and raise its temperature to 0°C.
The heat is required to melt the ice will be;
Q₁ = m_ice x Lf
where m_ice is the mass of the ice and\(L_{f}\) is the latent heat of fusion of ice.
Q₁ = 1.0 kg x 3.3 x 10⁵ J/kg
= 3.3 x 10⁵ J
The heat required to raise the temperature of the melted ice from -x°C to 0°C is;
Q₂ = m_ice x c_ice x ΔT
where c_ice is the specific heat capacity of ice and ΔT is the change in temperature.
Q₂ = 1.0 kg x 2093 J/kg.°C x (0 - (-x))°C
= 2093x J
The heat lost by the water will be equal to the heat gained by the ice;
Q₁ + Q₂ = m_water x Cw x ΔT
where m_water is the mass of the water and Cw is the specific heat capacity of water.
3.3 x 10⁵ J + 2093x J = 1.0 kg x 4186 J/kg.°C x (0 - T)°C
Solving for T, we get;
T = -[(3.3 x 10⁵ J + 2093x J)/(4186 J/kg.°C)]
= -78.8°C
Therefore, the original temperature of the ice was -78.8°C.
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An organ pipe of length 3.0 m has one end closed. The longest and next-longest possible wavelengths for standing waves inside the pipe are
Answers
Answer:
The longest wavelength for closed at one end and open at the other is
y / 4 where y is the wavelength - that is node - antinode
The next possible wavelength is 3 y / 4 - node - antinode - node -antinode
y / 4 = 3 m y = 12 meters the longest wavelength
3 y / 4 = 3 m y = 4 meters 1 / 3 times as long
Which describes the bending of light as it passes around or through a slit
Answers
Answer:
Diffraction
Explanation:
Hope that helps!!!
An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left and then 6 units to the
right. What is the displacement of the object?
1
5
7
13
Answers
Answer:
5
Explanation:
when you move 3 unit to the right your object is at 3.then when you move 4 units to the left your object is at -1 because
a number line also has negative numbers.Then if you move 6 units your object is at 5
A
consists of a period of non-strenuous activity that slowly
prepares the body for more vigorous exercise.
Answers
The period of non-strenuous activity that slowly prepares the body for more vigorous exercise is called a warm-up. A warm-up is an essential part of any exercise routine as it helps to prepare the body physically and mentally for more intense physical activity.
Explain non-strengthening activity that gradually prepares the body for more strenuous exercise?
During a warm-up, the body's muscles, heart, and lungs gradually increase their activity levels, and the body's temperature begins to rise. This gradual increase in activity and temperature helps to reduce the risk of injury and improves performance during more intense exercise.
A typical warm-up can last between 5 to 15 minutes, depending on the intensity of the upcoming exercise. Some common warm-up activities include light aerobic exercises like jogging or cycling, dynamic stretching, and mobility exercises.
It is important to note that a warm-up should not be too strenuous activity , as this can cause fatigue and decrease performance during the main workout. Instead, it should be a gentle and gradual increase in activity level to prepare the body for the upcoming exercise.
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How are magnetic fields like vectors?
Answers
Answer:Magnetic fields from two sources add up as vectors at each point, so the strength of the field is not necessarily the sum of the strengths1. Magnetic fields are vectors, which means they have direction as well as size. Therefore, the sum of two magnetic fields is not simply the sum of their magnitudes2.
Explanation:
A block with mass mb
= 1.7 kg
is connected by a rope across a 50-cm
-diameter, 2.0 kg
pulley, as shown in (Figure 1). There is no friction in the axle, but there is friction between the rope and the pulley; the rope doesn't slip and the pulley can be modeled as a solid cylinder. The weight is accelerating upward at 1.2 m/s2
.
What is the tension in the rope on the right side of the pulley?
Answers
The tension in the rope on the right side of the pulley is 23.2 N. The calculation is stated below.
Describe tension.The term "tension" in physics refers to the pulling force that is transmitted axially along a string, rope, chain, or another similar object, or along the ends of a rod, truss member, or other comparable three-dimensional objects. Tension can also be defined as the action-reaction pair of forces acting at the ends of the aforementioned elements. Hence the force of tension is calculated using the formula T = mg + ma.
Given:
∑F = \(m_{delta}\)
= \(m_{delta} a = T_{1} - F_{g} = T_{1} -m_{delta} g\\\)
\(T_{1} = m_{delta} a + m_{delta} g\\\)
\(T_{1}\) = m( a + g)
∑T = I = 1/2 mr 2/r
= \(T_{2} -T_{1}\)
T₂ = 1/2 ma + T₁
= 1/2 ma + m(2+g)
= m [1/2² +(2+g)]
= 2[1/2(1.3) = (1.3+9.)]
= 23.5 N
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You observe your friend standing in line at the cafeteria. You conclude they are buying lunch today. This is an example of: A. A scientific theory. B. An independent variable. C. An inference. D. A hypothesis
Answers
Answer:
5875yuguggjgefutfhyds
Explanation:
hfgjffiig
The following are four electrical components.
A. A component which obeys ohm's law
B. Another component which obeys ohm's law
but which has higher resistance than A
A filament lamp
C.
D. A component, other than a filament lamp,
which does not obey ohm's law.
a. For each of these components, sketch current-
voltage characteristics, plotting current on the
vertical axis, and showing both positive and
negative values. Use one set of axes for A and
B, and separate sets of axes for C and for D.
label your graphs clearly.
b.
Explain the shape of the characteristic for C
c. Name the component you have chosen for D.
Answers
For the following are four electrical components:
a. For components A and B, both of which obey Ohm's law, the current-voltage characteristics would be a straight line passing through the origin. The slope of the line for component B would be steeper than that of component A, indicating higher resistance.
b. The shape of the characteristic for component C, the filament lamp, can be explained by its construction. A filament lamp consists of a filament made of a resistive material, typically tungsten, which heats up and emits light when an electric current passes through it.
c. The component chosen for D, which does not obey Ohm's law, could be a diode. A diode is a two-terminal electronic component that allows the current to flow in only one direction.
For the following are four electrical components:
a. Sketches of current-voltage characteristics:
For components A and B, both of which obey Ohm's law, the current-voltage characteristics would be a straight line passing through the origin. The slope of the line for component B would be steeper than that of component A, indicating higher resistance.
Current (I)
^
| B
| /
| /
| /
| /
| /
| /
| /
| /
| /
|/
+------------------> Voltage (V)
Current (I)
^
| A
| /
| /
| /
| /
| /
| /
| /
| /
| /
|/
+------------------> Voltage (V)
For component C, a filament lamp, the current-voltage characteristic would be a curve that is not linear. It would exhibit a non-linear increase in current with increasing voltage. At lower voltages, the lamp would have low resistance, but as the voltage increases, the resistance of the filament also increases due to the phenomenon of thermal self-regulation. This leads to a slower increase in current at higher voltages.
For component D, a component that does not obey Ohm's law, the current-voltage characteristic could be any non-linear curve depending on the specific component chosen. Examples of components that do not obey Ohm's law include diodes and transistors.
b. The shape of the characteristic for component C, the filament lamp, can be explained by its construction. A filament lamp consists of a filament made of a resistive material, typically tungsten, which heats up and emits light when an electric current passes through it. As the voltage across the filament increases, the temperature of the filament increases as well, causing its resistance to increase. This increase in resistance results in a slower increase in current with increasing voltage, leading to the characteristic non-linear curve observed.
c. The component chosen for D, which does not obey Ohm's law, could be a diode. A diode is a two-terminal electronic component that allows the current to flow in only one direction. It exhibits a non-linear current-voltage characteristic where it conducts current only when the voltage is above a certain threshold, known as the forward voltage. Below this threshold, the diode has a high resistance and blocks current flow in the reverse direction. The characteristic curve of a diode would show negligible current flow until the forward voltage is reached, after which it exhibits a rapid increase in current with a relatively constant voltage.
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Organic farming follows the
principles of health and
A. economic gain
B. wealth
C. profits
D. ecology
Answers
Answer:The Answer is economic gain
Explanation:
When you use a graduated cylinder in the lab, you can only use it to find the volume of liquids. (5 points)
True
False
Answers
Answer:
false
Explanation:
you can't only use it to find the volume of liquids
Is the answer A or D?
Two identical cars, car 1 and car 2, are moving in opposite directions on a straight road. The position of each car as a function of time is represented in the graph. What is the speed of the center of mass of the two-car system?
O Zero
O 10 m/s
O 20 m/s
O 40 m/s
Answers
The required speed of the center of mass of the two-car system is 10 m/s.
Option(2) is corret.
What is speed?The reason is simple. Velocity is the percentage of time an object moves along a path, and Velocity is the speed and direction of an object's movement.
The mathematical calculation of velocity is relatively simple, the average velocity of an object is calculated by dividing the distance traveled by the time it took the object to travel that distance. Velocity, on the other hand, is mathematically complex and can be calculated in different ways depending on what information is available about the object's motion. In its simplest form, the average velocity is calculated by dividing the change in position (Δr) by the change in time (Δt).
According to graph:Let the mass of cars which is same is M,
Speed (V1) = 30 m/s
Speed (V2) = -10 m/s
Then,
Speed of center of mass = MV1 + MV2/2M
Speed of center of mass = M(30) + M(-10)/2M
Speed of center of mass = 30M - 10M/2M
Speed of center of mass = 20M/2m
Speed of center of mass = 10 m/s
Thus, Speed of center of mass is 10 m/s
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What is a distinguishing feature in a city known as?
OA) hot spot
OB) landmark
C) state legend
OD) state park
Answers
A defining characteristic of a city is often referred to as a "landmark." A landmark is a distinctive feature or building that stands out and is used to identify or represent a location. Landmarks can be man-made, such as structures, monuments, or historical locations, or they can be natural, like mountains, rivers, or lakes.
Landmarks are significant tourist destinations for both locals and visitors because they frequently have historical, cultural, or architectural value. They can serve as a symbol of a city's identity, history, and personality and end up being recognised as the place's iconic symbols. Landmarks might be notable buildings, statues, cathedrals, museums, or bridges that have come to symbolise the city in which they are located.
Therefore, option (OB) "landmark" is the term used to describe a distinguishing feature in a city.
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Two cars collide head-on and stick together.
Car A, with a mass of 2000 kg, was initially
moving at a velocity of 10 m/s to the east. Car
B, with an unknown mass, was initially at rest.
After the collision, both cars move together at
a velocity of 5 m/s to the west. What is the
mass of Car B?
OF
Answers
The mass of Car B is -6000 kg.
To solve this problem, we can apply the principle of conservation of momentum, which states that the total momentum before the collision is equal to the total momentum after the collision.
Therefore, we can write the equation for the conservation of momentum as:
(mass of Car A * velocity of Car A) + (mass of Car B * velocity of Car B) = (mass of Car A + mass of Car B) * velocity after collision
Let's substitute the given values into the equation:
(2000 kg * 10 m/s) + (mass of Car B * 0 m/s) = (2000 kg + mass of Car B) * (-5 m/s)
Simplifying the equation:
20000 kg*m/s = -5 m/s * (2000 kg + mass of Car B)
Dividing both sides by -5 m/s:
-4000 kg = 2000 kg + mass of Car B
Subtracting 2000 kg from both sides:
mass of Car B = -4000 kg - 2000 kg
mass of Car B = -6000 kg
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A 5.0 mH toroidal inductor has 125 identical equally spaced coils.If it carries an 11.6 A If the potential difference across its ends is 1.26 V , at what rate is the current in it changing?
Answers
The rate as which the current in it is changing is 252 A/s.
What is the rate of change of the current?
For an inductor carrying a current the rate of change of the current is calculated by applying the following formula as shown below.
di/dt = E/L
where;
di/dt is the rate of change of the current in the inductorE is the emf of the inductorL is the inductance of the inductorThe rate as which the current in it is changing is calculated as follows;
di/dt = 1.26 V / ( 5 x 10⁻³ )
di/dt = 252 A/s
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Which would be a good analogy of wave motion
Answers
----------------
Answer:
i believe it would be C
Explanation:
what is the largest star in our night sky
Answers
g A 150-kg object and a 450-kg object are separated by 4.90 m. (a) Find the magnitude of the net gravitational force exerted by these objects on a 39.0-kg object placed midway between them. 130000000000 Incorrect: Your answer is incorrect. Draw a picture of the three objects, including the forces exerted on the third. N (b) At what position (other than an infinitely remote one) can the 39.0-kg object be placed so as to experience a net force of zero from the other two objects
Answers
Answer:
BBbbb
Explanation:
B is the correct answer:))))
23.15. Can an object carry a charge of 2.0 10-19 C?
Answers
Answer:
Ok, the minimal quantity of charge that we can find is on the electron or in the proton (the magnitude is the same, but the sign is different)
Where the charge of a single proton is:
C = 1.6x10^-19 C
Now, you need to remember that when we are working with charges, we are working with discrete math:
What means that?
If the minimum positive is the charge of one proton, then the consecutive charge will be the charge of two protons (there is no somethin in between)
So the consecutive charge will be:
C = 2*1.6x10^-19 C = 3.2x10^-19 C.
So, because we are working in discrete math, we can not have any object that has charge between 1.6x10^-19 C and 3.2x10^-19 C.
Particularly, 2.0x10^-19 C is in that range, so we can conclude that:
No, an object can not carry a charge of 2.0x10^-19 C.
Based on the data, what is the relationship between the wave frequency and wave speed?.
Answers
C) The speed increases with increasing frequency.
The data shows that as wave frequency increases, wave speed also increases. As the frequency increases, the wave has more energy, so it moves faster.Frequency is a measure of how often something occurs over a period of time. It is usually measured in cycles per second (Hertz) or per minute (cycles per minute). Frequency is used in various fields such as radio, sound, and electromagnetic waves. Wave speed is the speed of a wave as it moves through a medium.Meters per second (m/s) or kilometres per hour (km/h) are the usual units of measurement. This implies that the wave's speed grows together with its frequency.The wave equation is the name given to this relationship.
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complete question:added as picture
water flows steadily through a horizontal pipe of varying cross section at one place, the pressure is 130KPa and the speed is 0.6m/s. what is the pressure at another place in the same pipe where the speed is 9.0m/s
Answers
Answer:
1950 kpa
Explanation:
9 ÷ .6 = 15 times the speed. so 15 times the pressure 130 x15 = 1950 kpa
Since the bullets also have zero velocity, a more exact description of the bullet's state would be _____.
Answers
Answer:
Static equilibrium.
Explanation:
Jack starts walking east (+ x-direction) at a pace of 2 m/s. Jill, who is very upset with Jack, is running west (- x-direction) towards him at a rate of 4 m/s and is initially 200 meters to the east of Jack when she sees him. When and where does she run into him?
A.
Cannot be determined.
B.
x_f = 66.7 m and t_f = 66.7 sec
C.
x_f = 33.3 m and t_f = 66.7 sec
D.
x_f = 66.7 m and t_f = 33.3 sec
Answers
D. The time at which she meets him is 33.33 seconds and she had traveled a distance of 66.7 m.
Time when jack meets jill
The time at which Jack and Jill meet each other is calculated as follows;
(4 m/s - -2 m/s)t = 200
(4 + 2)t = 200
6t = 200
t = 200/6
t = 33.33 seconds
Distance traveled by JackD = 2 m/s x 33.33 seconds
D = 66.7 m
Thus, the time at which she meets him is 33.33 seconds and she had traveled a distance of 66.7 m.
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Calculate how much work the force of gravity does on the sphere from B to C .
Answers
(a) The work done by the force of gravity from A to B is 4.41 Joules.
(b) The work done by the force of gravity from B to C is zero.
(c) The work done by the force of gravity from A to C is 4.41 Joules.
a) To calculate the work done by the force of gravity from A to B, we need to consider the change in potential energy. The potential energy at point A is maximum due to the maximum angle of 35.0∘ to the left of vertical, while at point B, the string is vertical, and the potential energy is zero.
The change in potential energy (ΔPE) is given by:
ΔPE = m * g * h
where m is the mass of the sphere (0.500 kg), g is the acceleration due to gravity (9.8 m/s^2), and h is the change in height.
Since the potential energy at point A is maximum, the change in height is equal to the length of the string (0.900 m).
ΔPE = 0.500 kg * 9.8 m/s^2 * 0.900 m = 4.41 J
Therefore, the work done by the force of gravity from A to B is 4.41 Joules.
b) From B to C, the change in height is zero since the string is already vertical. Hence, the work done by the force of gravity from B to C is zero.
c) The total work done by the force of gravity from A to C is the sum of the work done from A to B and from B to C.
Total work = Work from A to B + Work from B to C = 4.41 J + 0 J = 4.41 J
Therefore, the work done by the force of gravity from A to C is 4.41 Joules.
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I think it is the question:
A Pendulum Is Made Up Of A Small Sphere Of Mass 0.500 Kg Attached To A String Of Length 0.900 M. The Sphere Is Swinging Back And Forth Between Point A, Where The String Is At The Maximum Angle Of 35.0∘ To The Left Of Vertical, And Point C, Where The String Is At The Maximum Angle Of 35.0∘ To The Right Of Vertical. The String Is Vertical When The Sphere Is At
A pendulum is made up of a small sphere of mass 0.500 kg attached to a string of length 0.900 m. The sphere is swinging back and forth between point A, where the string is at the maximum angle of 35.0∘ to the left of vertical, and point C, where the string is at the maximum angle of 35.0∘ to the right of vertical. The string is vertical when the sphere is at point B.
a) Calculate how much work the force of gravity does on the sphere from A to B.
b) Calculate how much work the force of gravity does on the sphere from B to C.
c) Calculate how much work the force of gravity does on the sphere from A to C.