A car travelling in a straight-line path has a velocity of +10.0 m/s at some instant. After 7.00 s, its velocity is +9.00 m/s. What is the average acceleration of the car during this time interval?

Answer:

At the point of dropping the object, by Newton's first law due to gravitational force \(F_g\) = m × g, accelerates

By Newton's Second law the object reaches impacts on the air with the gravitational force resulting in changing momentum of m×(Final Velocity - Initial Velocity)

As the velocity increases, the rate of change of momentum becomes equivalent to the gravitational force and by Newton's third law, the action action and reaction are equal and opposite hence they cancel each other out

The body then moves at a constant uniform motion down according to Newton's first law

Explanation:

At the point the object of mass, m, is dropped from the height of the tower, the only force acting on the object is the gravitational force such that the object has an acceleration which is the acceleration due to gravity, g, and the gravitational force is therefore = m × g

As the speed of the object increases while the object is falling with the gravitational acceleration the rate at which the object cuts through layers of air which (by Newton's first law of motion, are at rest ) has some buoyancy effect also increases therefore, the object is constantly increasingly changing the momentum of the air which by Newton's second law results, at an high enough velocity, and by Newton's third law, in a force equal to the applied gravitational force

Therefore, the force of the air drag becomes equal to the gravitational force, cancelling each other out and the object then moves according to Newton;s first law, in uniform motion of a constant speed while still falling down.

Force(F) = 350 N

Work (W)= 0 J

Apply the formula:

Work = Force x Distance

Isolate distance(d)

Distance = Work/ Force

d = W/F = 0 /350 = 0 m

The distance that the object traveled is 0 (zero)

Answer:

I think the answer you're looking for is particulate matter.

Explanation:

Answer: 180

Explanation: Acellus

This equation gives the magnitude of the electric field generated by a point charge Q. The distance r in the denominator is the separation between the point of interest and the point charge Q. Or the center of a spherical charge.

It is simple to determine the size of the electric field by calculating the force per charge on the test charge. From this definition, the common metric units for electric field strength are derived. Electric field units would be force units divided by charge units, as the definition of an electric field is a force per charge.

F = |qvBsin()| calculates the magnetic force's magnitude. The following factors are involved in determining the force's direction. A plane is first defined by the magnetic field vector, B, and the velocity vector, v. In or out of this plane, the magnetic force is perpendicular to it.

Therefore, The electric force F, or Coulomb force, exerted per unit positive electric charge q at that place can be used to determine an electric field's strength, or E = F/q.

Learn more about electric fields here:

https://brainly.com/question/15800304

#SPJ2

12). When you move your hand or foot, your body has converted potential energy into kinetic energy.

13). When coasting while roller skating, you eventually stop due to

friction causes kinetic energy to transfer to thermal energy.

14).  A ball has 100 J of potential energy when it is on a shelf. The kinetic energy of the ball the instant it hits the floor is Kinetic increases, potential decreases.

Kinetic energy is the force that propels motion, which can be seen in the movement of a particle, an object, or a group of particles. A person walking, a baseball being thrown, a piece of food falling from a table, and a charged particle in an electric field are all examples of objects in motion that use kinetic energy.

To know more about kinetic energy visit:

https://brainly.com/question/26472013

#SPJ1

Answer:

Vector quantity

Explanation:

The electrical potential between the anode and the cathode alters when a charged particle enters the tube. This shift in voltage in the electrical circuit results from the potential change in the tube and counts as a change.

When radiation strikes the gas inside the tube, it dislodges an electron from the gas particle and produces an ion pair. The tube's centre has a filament that draws electrons.

The ionisation process is used by a Geiger counter to measure and identify radiation. The chamber of the gadget contains a stable gas. This gas ionises when subjected to radioactive particles.

To know more about electrical potential visit:-

https://brainly.com/question/12645463

#SPJ1

The experiment involves measuring the coefficient of static friction between a wood board and a wood block using a spring balance. The procedure includes cleaning surfaces, tilting the board, and calculating the friction coefficient.

The experiment for determining the coefficient of static friction between the wood board and the wood block is given below:

Learn more about static friction: brainly.com/question/13680415

#SPJ11

The temperature of the air is approximately 20.65°C.

v = 331.3 m/s * sqrt(T/273.15 K)

Using the formula for the speed of sound, we can calculate the temperature of the air:

v = f * λ

where f is the frequency and λ is the wavelength.

Substituting the given values, we get:

v = 781 Hz * 0.45 m = 351.45 m/s

351.45 m/s = 331.3 m/s * sqrt(T/273.15 K)

Squaring both sides and rearranging, we get:

T = (351.45^2 / 331.3^2) * 273.15 K = 293.8 K

Converting from Kelvin to Celsius, we get:

T = 293.8 K - 273.15 K = 20.65°C

In physics, wavelength is a term that refers to the distance between two consecutive points in a wave that is in phase with each other. It is usually denoted by the Greek letter lambda (λ). The wavelength of a wave is typically measured from crest to crest or from trough to trough.

Wavelength is an important concept in physics as it is related to the energy and frequency of a wave. In fact, the wavelength of a wave and its frequency are inversely proportional to each other, meaning that as the frequency of a wave increases, its wavelength decreases, and vice versa. This relationship is described by the equation λ = c/f, where c is the speed of light and f is the frequency of the wave.

To learn more about Wavelength visit here:

brainly.com/question/4112024?

#SPJ4

Answer:

extension = 0.9 m

Explanation:

The formula relating force to extension for a spring is given as follows:

\(\boxed{F = kx}\),

where:

• F = force applied on spring

• k = spring constant

• x = extension of spring

From the above formula:

\(\frac{F}{x} = k = \mathrm{constant}\)

This means that, for a spring, the ratio \(\frac{F}{k}\) is a constant value. Therefore, we can say:

\(\frac{F_1}{x_1} = \frac{F_2}{x_2}\)

Substituting 2.0N and 0.30m for F₁ and x₁ respectively, and 6N for F₂, in the above equation, we can solve for x₂:

\(\frac{2.0}{0.3} = \frac{6.0}{x_2}\)

⇒ \(x_2 \times \frac{2.0}{0.3} = 6.0\)          [Multiplying both sides of the equation by x₂]

⇒ \(x_2 = 6.0 \div \frac{2.0}{0.3}\)

⇒ \(x_2= \bf 0.9 m\)

Therefore, the extension of the spring when 6N force is applied is 0.9 m.

The extension of the spring when the force applied becomes 6 N is 0.9 m.

The force constant or spring constant of the spring is calculated as follows;

F = kx

k = F/x

where;

k = (2 N) / (0.3 m) = 6.67 N/m

The extension of the spring when the force applied on the spring becomes 6 N is calculated as follows;

x = F/k

x = (6 N) / (6.67 N/m)

x = 0.9 m

Learn more about spring constant here: https://brainly.com/question/1968517

#SPJ1

The gain in translational kinetic energy of the cylinder when it has rolled 5m down the incline of the plane is approximately 345.6 J.

Given data:

Diameter, d = 0.20 mRadius,

r = 0.10 mMass of cylinder,

m = 12 kgInclined angle, θ = 37°

Distance traveled by cylinder, s = 5m

We know that work done by the gravitational force is the change in potential energy.

W=Fhsinθ... (1)

The kinetic energy of rolling objects is equal to its rotational kinetic energy plus its translational kinetic energy.

K = 1/2Iω² + 1/2mv²... (2)

The moment of inertia of a solid cylinder I=mr²/2.

Using conservation of energy principle:

Gain in translational kinetic energy of the cylinder is equal to the loss in potential energy.

Thus,

½mv²=mgH-mgSins....(3)

When the cylinder rolls without slipping, its velocity is equal to its angular velocity multiplied by its radius

v=ωr

Therefore, the rotational kinetic energy can be expressed as

1/2Iω²=1/2mr²ω²/2.... (4)

Using equations (1), (2), (3), and (4),

we can find the gain in translational kinetic energy of the cylinder while it rolls 5m down the incline of the plane.

K=1/2mv²=1/2m(v=ωr)²=1/2mr²ω²/2=1/2Iω²=1/2(12)(0.10)²(2/2)=0.12J... (5)

Potential energy, P=mgh=mgSins=12(9.8)(5)sin37°=294.2 J... (6)

So, using equations (5) and (6), we can get the gain in translational kinetic energy of the cylinder to be approximately:

K = 294.2 J – 0.12 J = 294.08 J

Therefore, the gain in translational kinetic energy of the cylinder when it has rolled 5 m down the incline of the plane is approximately 345.6 J.

learn more about kinetic energy here

https://brainly.com/question/8101588

#SPJ11

To show how forces of 7N and 9N can be combined to give a resultant force of 16N and 2N, we need to understand the concept of vector addition.

Vector addition involves adding two or more vectors to get a resultant vector. The resultant vector represents the total effect of all the individual vectors acting together.

To add the two vectors, we place them head to tail. This means we draw the second vector starting from the tail of the first vector. The resulting vector is drawn from the tail of the first vector to the head of the second vector.

Once we have the vectors drawn, we measure their magnitudes and directions using a protractor and ruler. We then use trigonometry to calculate the magnitude and direction of the resultant vector.

To represent the resultant force on our diagram, we draw a third vector starting from the tail of the second vector and ending at the point where the two forces intersect. This represents the resultant force, which we measure and draw accurately.

To know more about  resultant force visit:-

https://brainly.com/question/16380983

#SPJ11

Answer:

Radio waves, I believe

Explanation:

Answer:

radio yes yup yup yup yup

The 15.04 m/s fast will it be moving when it hits the ground.

An object's velocity is a key factor in determining its position and rate of motion. It is comprehensible as the distance an object moves in a single interval of time. The term "velocity" describes how far an object travels in a predetermined length of time.

Measuring inertia, a property of all stuff that cannot be changed. What a body of matter is in essence is the resistance it provides to a change in its speed or location brought about by the application of a force.

The vertical component of velocity is given by

usinθ

Here,u=25m/s and θ=37°

So,vertical component will be 25sin37°

And on further solving it would be 15.04 m/s.

Therefore, 15.04 m/s fast will it be moving when it hits the ground.

Learn more about velocity from the given link.

brainly.com/question/25749514

#SPJ4

Part A:  6.0 cm apart are the two nearest points on the slinky that at one particular time both have the maximum magnitudes of displacements from their equilibrium positions.

Part B: The period of the wave is 0.2 seconds.

A transverse wave of amplitude 3.0 cm, frequency 5.0 Hz, and speed 3.0 m/s travels on an infinitely long slinky. This question is a two-part question.

Let us solve each part of the question.

Part A:

We know that transverse waves move up and down perpendicular to the direction of the wave. It means that the maximum displacement of a particle from its equilibrium position is equal to the amplitude of the wave.

In one period (T), the wave completes one full cycle. The number of cycles completed in one second is called the frequency (f) of the wave.

The product of wavelength (λ) and frequency (f) of the wave is equal to its velocity (v).

The formula for a wave is given as follows:v = λf

Here, v is the velocity, λ is the wavelength and f is the frequency.

From the formula, we can calculate the wavelength of the wave. We are given the amplitude (A) and frequency (f) of the wave. We are to find the distance between two nearest points at maximum displacement.

To solve the problem, we use the formula for the wavelength of a wave.

λ = v/f

Substituting the values given:

λ = (3.0 m/s)/(5.0 Hz)

λ = 0.6 m

We know that for a transverse wave, maximum displacement is equal to the amplitude.

Therefore, the distance between two nearest points at maximum displacement is equal to two times the amplitude.

Substituting the value:

Distance between two nearest points at maximum displacement = 2 x amplitude= 2 x 3.0 cm = 6.0 cm

Part B:

The period of the wave is the time it takes for a complete cycle. The formula for the period is given as follows:

T = 1/f

Substituting the values:

T = 1/5.0 Hz

T = 0.2 seconds

For similar question on period of the wave

https://brainly.com/question/18818486

#SPJ11

By using one as a frame of reference, we will see that 6 seconds elapse before the two cars meet.

The correct option is B.

A frame of reference is a clearly defined coordinate system that is used to represent a body's motion or state of rest. Reference frames can be divided into two categories: inertial or non-accelerating frames and non-inertial or accelerating frames.

This moves at 30 m/s, then we will see that car A does not move, while car B moves with a speed of:

S = 20m/s + 30m/s = 50m/s

The two cars are moving in opposing directions, therefore the velocities are summed (So car A sees that car B comes faster than it actually does).

We just need to determine how long it will take automobile B to drive 300 metres at 50 m/s now that we are in this frame of reference.

Distance/speed = time

distance = 300m

speed = 50m/s.

(300m)/( 50 m/s) = 6s

This means that 6 seconds elapse before the two cars meet.

To know  more about frame or reference visit:

https://brainly.com/question/9820962

#SPJ9

The complete question is -

Two cars, A and B start out 300 meters apart. Car A travels due east toward car B at 30 meters per second. Car B travels due west toward car B at 20 meters per second. How long does it take before the two cars meet?

A- 15s

B- 6s

C- 10s

D- 5s

Explanation:

well its depends for example one car might be going down the hilll and the other up a hill and there the velocity can change between the cars because of gravity so one can be going faster and the other slower.

Answer:

Explanation:

Discussion

The ones that are certain are

If you have a normal, and the player slides into 2nd, and stops (which he must before he is tagged), then there must be friction involved. There must be gravity, or he would keep going up.

I don't think there is tension. There might be some Air Resistance, but that force is very tiny. Don't be surprised if you answer includes Air Resistance, but I won't try it to begin with.

Answer:

applications of density measurements. The densities of brass and aluminum will be calculated from mass and volume measurements.

Explanation:

The feature that is true of both solar and wind power is (b) Both power sources produce no greenhouse gas emissions during normal operation.

This makes them a more environmentally friendly alternative to traditional fossil fuels, which emit carbon dioxide (CO2) and other harmful gases during combustion.

However, the other options are not completely accurate. Solar and wind power can be intermittent, but this does not necessarily mean that they require a backup energy source. Energy storage technologies, such as batteries or pumped hydro storage, can be used to store excess energy generated during times of high production and release it during times of low production.

Furthermore, while solar and wind power currently supply a small fraction of global energy demand, it is important to note that their usage is increasing rapidly. In fact, renewable energy sources, including solar and wind power, are projected to be the fastest-growing energy source over the next few decades.

In conclusion, solar and wind power's most significant shared feature is their ability to operate without producing greenhouse gas emissions. While they do have other characteristics that are sometimes associated with them, these features are not always completely accurate and may not apply in every circumstance.

for more such questions on power

https://brainly.com/question/1634438

#SPJ8

Answer: 18 m/s/s

Explanation:

3 times 6 equals 18 and 3 seconds every second makes this equation

Answer:

Genotypes are determined by tests. Genotype and phenotype sound the same but mean different things. The phenotype is determined by your genotypes and by your genes or traits, like hair color or type, eye shape and color, body and height. Were all unique, even identical twins, based on the way they look or act. Your uniqueness is based on your genetic make-up, that we inherited from our parents.

Is this better?

Brainliest please!

The human eye can detect objects that are 30 centimeters apart at a distance of 1 kilometer owing to its approximately 1 arcminute angular resolution.

The human eye has a maximum angular resolution of 28 arc seconds, or 0.47 arc minutes. As a result, at a distance of 1 kilometer, we are unable to resolve things smaller than 30 cm. The closer the object is placed; more distinguishable it appears to the eyes.

Angle resolution is one of the limits to which your eyes can see. Light rays that are reflected off or produced by things are visible to your eye. These light rays enter your pupil and are focused on your retina by your eye's lens. Depending on the angle at which the corresponding light beams from two items interact, your pupil size—which is comparable to the aperture of a camera—determines how well you can distinguish between two objects.

To know more about angular resolution, refer:

https://brainly.com/question/14924947

#SPJ4

Complete question:

the human eye has an angular resolution of roughly 1 arcminute. which of the following objects are we not able to resolve, and uses the unit of arcminute correctly?

Objects closer than 1 km

Objects away from the vision

Objects at a distance of 2 km

Objects just near to eyes

If the end of the cable at a is pulled down with a speed of 5 m>s the speed at which block B rises is 5 m/s.

To answer your question, we will be using the concept of conservation of energy and the relationship between the velocities of the two points A and B.

Given that the end of the cable at point A is pulled down with a speed of 5 m/s, we need to determine the speed at which block B rises.

Identify the relationship between the velocities.
Since the cable is continuous and there is no slack, the length of the cable remains constant. Therefore, the distance pulled down at point A must be equal to the distance block B rises. Mathematically, this can be represented as:

Distance A = Distance B

Apply the conservation of energy principle.
As energy is conserved in the system, the work done in pulling down the cable at point A should be equal to the work done in lifting block B. We can represent this using the velocities:

Velocity_A * Time = Velocity_B * Time

Step 3: Solve for the unknown variable, Velocity_B.
As we are given the velocity at point A (5 m/s), we can solve for the velocity at point B:

5 m/s * Time = Velocity_B * Time

Since the time is the same for both points, we can divide both sides by Time:

5 m/s = Velocity_B

Thus, the speed at which block B rises is 5 m/s.

More on speed: https://brainly.com/question/28518765

#SPJ11

The magnitude of a vector is a scalar representation of the length of the vector. To find the magnitude of a 2-dimensional vector (x, y), you can use the Pythagorean theorem:

magnitude = \(√(x^2 + y^2)\)

In this case, for the vector (3.00, 2.00), the magnitude is:    

magnitude = \(√(3^2 + 2^2) = √(9 + 4) = √13 = 3.6\)

The direction of a vector is a measure of the angle it makes with the positive x-axis. The direction is often expressed in radians, with zero radians being the positive x-axis, and positive angles rotating counter clock wise. To find the direction, you can use the arctangent function (atan2):

direction = atan2(y, x)

In this case, for the vector (3.00, 2.00), the direction is:

direction = atan2(2, 3) = 0.93 radians (or\(53.13°\))

So, the magnitude of the vector (3.00, 2.00) is 3.6 and its direction is 0.93 radians (or\(53.13°\)).

To learn more about magnitude please click on below link

https://brainly.com/question/1447482

#SPJ4

Adding additional nickel-paper towel-penny layers to a voltaic pile will increase the voltage generated by the pile.

The difference in electric potential between two points is known as voltage, also referred to as electric pressure, electric tension, or potential difference. It relates to the amount of work required to move a test charge between two points in a static electric field.

Simply put, voltage also known as electromotive forceis the amount of energy in one charge. Voltage, then, is the variation in electric potential between two points.

The change in voltage will not be constant, but rather will increase as the number of layers increases. This is due to the fact that each additional layer increases the total surface area of the electrodes and the number of electron transfer reactions that can occur, leading to a greater overall voltage generated by the pile.

Learn more about voltage on:

https://brainly.com/question/1176850

#SPJ1

Answer:

here is your answer

Explanation:

here is your answer

1.96 minutes long should it take to bring 0. 7 l of water from room temperature (20°c) to 80°c.

To find the answer, we have to know about the heat energy.

                    \(Power,P=1500W\\Volumw, V=0.7L\\T_1=20^0C \\T_2=80^0C\)

                   \(m=\rho V=1kg/L*0.7L=0.7kg\)

                    \(Q=mc\Delta T=0.7*4182(80-20)\\Q=1.76*10^5J\)

where, c equals to 4182J/kg°C.

                     \(t=\frac{E}{P} =\frac{1.76*10^5}{1500} =117.3s=1.96minutes.\)

Thus, we can conclude that, 1.96 minutes long should it take to bring 0. 7 l of water from room temperature (20°c) to 80°c.

Learn more about heat energy here:

https://brainly.com/question/27381457

#SPJ4