The material composition of the wheel can affect its density and hence its mass, but it does not directly affect the rotational inertia. However, the strength and other material properties of the wheel can indirectly affect the rotational inertia by affecting the thickness and shape of the wheel.
What is the rotation?
Rotation is the process of turning an object around a fixed point or axis. This can refer to physical objects, where the object is rotated on the ground or an axis, or in the case of a 3D object, it can refer to the object's orientation in space. The rotation can be in any direction, either clockwise or counterclockwise.. In addition, rotation can be used to describe the movement of a mathematical equation or graph around a point or axis.
The rotational inertia of a wheel about its axle does not depend upon its mass distribution or speed of rotation.
The rotational inertia (also called moment of inertia) of a wheel depends only on its mass, diameter, and the way its mass is distributed around its circumference. Specifically, the rotational inertia of a wheel is proportional to the square of its radius and the mass of the wheel. The distribution of mass around the circumference affects the way the mass is concentrated with respect to the axis of rotation, but does not affect the total rotational inertia.
The material composition of the wheel can affect its density and hence its mass, but it does not directly affect the rotational inertia. However, the strength and other material properties of the wheel can indirectly affect the rotational inertia by affecting the thickness and shape of the wheel.
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Alisa, a skateboarder, is riding down a hill. If Alisa and the skateboard are considered a single object, what forces are acting on her? Check all that apply.
Answer: gravity
normal force
friction
Explanation:
A force is refered to as the interaction which when unopposed, will lead to a change in an objects motion. The velocity of an object will be changed when force is applied.
Since Alisa s riding down a hill and she and the skateboard are considered to be a single object, then the forces that are acting on her include gravity, normal force and friction.
Please help me if you can.
I can't figure out how the answer for number 30 is C and 31 is C. My question is how did they get that answer?
Answer:
30. $3.85
31. $2.22
Explanation:
30. The time duration of the kitchen clock is left on = All day = 24 hours
The power rating of the kitchen clock, P = 4 watts
The electricity cost in Alberta, R = $0.11 per kilowatt hour
The total number of hours the kitchen clock is on during the year, 't', is given as follows;
t = Number of hours per day × Number of days per year
∴ t = 24 hours/day × 365 days/year = 8,760 hours
The energy consumption of the kitchen clock, per year, E = P × t
∴ E = 4 watts × 8,760 hours = 35,040 watts-hour = 35.040 kw·h
The cost of operating the clock in one year, C = E × R
∴ Operating cost for the kitchen clock
∴ C = 35.040 kw·h × $0.11/(kw·h) = $3.8544 ≈ $3.85
The cost of operating the clock in one year, C ≈ $3.85
31. The power rating of the ghetto blaster, P = 28 watts
The time duration the ghetto blaster was on during an average month = All day = 24 hours
The number of days during an average month, n = 30 days
The cost of electricity in Alberta, R = $0.11 per kilowatt hour
The time in hours the ghetto blaster was on, t = 30 days/month × 24 hours/day
∴ t = 720 hours per month
The cost of operating the ghetto blaster in one month, C = P × t × R
∴ C = 28 W × 720 hours × 1 kw·h/(1000 w·h)× $0.11/(kw·h) = $2.2176
∴ The cost of operating the ghetto blaster in one month, C ≈ $2.22
Can the sun explain global warming? ( 2 points) Suppose that the Earth has warmed up by 1 K in the last hundred years. i) How much would the solar constant have to increase to explain this? ii) Compare this to the observed fluctuation of the solar constant over the past 400 years (shown in class) For part (i), begin with the standard 'blackbody' calculation from class, that is: set α=0.30, and assume that the Earth acts as a blackbody in the infrared.
No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.
This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.
i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.
ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.
The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.
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A body of mass 500kg moving at a speed of 10m/s reaches the speed of 50m/s in 20s.The force exerted is
Answer:
answer is 1000 N
formula used-
F= m x (v-u/t)
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A hemispherical bowl 40.0 cm in diameter is filled with a liquid density 805 kg/m^3. Find the maximum pressure exerted on the interior surface of the bowl.
The maximum pressure exerted on the interior surface of the bowl is 3,155.6 N/m².
What is hydrostatic pressure?Hydrostatic pressure is the pressure exerted by a fluid at rest due to the force of gravity.
This pressure refers to fluid pressure at certain depth of the liquid volume.
Fluid pressure is a measurement of the force per unit area on a object in the fluid or on the surface of a closed container.
The maximum pressure exerted on the interior surface of the bowl is calculated as follows;
P = ρgh
where;
P is the maximum pressure of the fluidρ is the density of the fluidg is acceleration due to gravityh is the maximum vertical depthThe maximum vertical depth in the hemispherical bowl is its diameter.
Substitute the given parameters and solve for the maximum pressure of the fluid.
P = (805 kg/m³)(9.8 m/s²)(0.4 m)
P = 3,155.6 N/m²
Thus, the maximum pressure exerted on the interior surface of the bowl is 3,155.6 N/m².
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Please Help!
What is inertia? What does inertia depend on?
On the screenshot linked below, the answer to part one is .237141. How would I solve part two?
(a) The fraction of neutron's kinetic energy transferred to the atomic nucleus is 0.068.
(b) The final kinetic energy of the neutron is 2.48 x 10⁻¹³ J.
What is the final velocity of the atom?The final velocity of the atom is calculated by applying the principle of conservation of linear momentum as follows;
initial momentum of the neutron = final momentum of the atom
m₁u₁ = m₂u₂
where;
m₁ is the mass of the neutronu₁ is the initial velocity of the neutronm₂ is the mass of the atomic nucleusu₂ is the final velocity of the atomic nucleusThe mass of the atom = 14.8m₁
u₂ = m₁u₁ / m₂
u₂ = m₁u₁ / (14.8m₁)
u₂ = 0.0676u₁
The initial kinetic energy of the neutron is calculated as;
K.Ei = ¹/₂m₁u₁²
The final kinetic energy of the atom is calculated as;
K.Ef = ¹/₂m₂u₂²
K.Ef = ¹/₂(14.8m₁)(0.0676u₁)²
K.Ef = 0.068 (¹/₂m₁u₁²)
K.Ef = 0.068 (K.Ei)
The fraction of neutron's kinetic energy transferred to the atomic nucleus is calculated as;
= 0.068 (K.Ei) / K.Ei
= 0.068
= 6.8 %
The final kinetic energy of the neutron is calculated as follows;
K.E.f (neutron) = (1 - 0.068) x (2.66 x 10⁻¹³ J)
K.E.f (neutron) = 2.48 x 10⁻¹³ J
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Did you create a model that looked different from the model shown when you clicked the 3-D model? If so, how was it different?
Answer: Yes, the appearance of the 3D model generated by the language model may differ from the actual model shown when you click on the 3D model link. The model generated by the language model is a textual representation of the object or concept, whereas the actual 3D model displayed is a visual representation.
Explanation:
The textual description provided by the language model aims to describe the characteristics, properties, or features of the object in question. It may include details such as size, shape, color, and other relevant attributes. However, since the language model does not have direct access to visual information, it cannot replicate the exact appearance of the 3D model.
The actual 3D model shown when clicking the link would be a visual representation created by the platform or software used, based on available data or reference images. It would provide a more accurate and realistic depiction of the object in terms of its visual appearance, texture, and spatial arrangement.
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a soccer ball accelerates more than a bowling ball when thrown with the same force. which law of newton best supports this?
Answer:
Newtons second law of motion known as the law of acceleration
Explanation:
The second law explains that a greater mass requires a greater force
Amount of heat required to raise temperature of 10gm water through 2 deg * C is
The amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.
To determine the amount of heat required to raise the temperature of 10 g of water through 2°C, we will use the formula:Q = m × c × ΔT
Where Q is the amount of heat required, m is the mass of the substance being heated, c is the specific heat capacity of the substance, and ΔT is the change in temperature.
So, for 10 g of water, the mass (m) would be 10 g.
The specific heat capacity (c) of water is 4.184 J/(g°C), so we'll use that value.
And the change in temperature (ΔT) is 2°C.
Substituting these values into the formula, we get:Q = 10 g × 4.184 J/(g°C) × 2°CQ = 83.68 Joules
Therefore, the amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.
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Amy has a mass of 50 kg, and she is riding a skateboard traveling 10 m/s. What is her momentum?
a 2.0-mm-diameter glass bead is positively charged. the potential difference between a point 2.0 mm from the bead and a point 4.0 mm from the bead is 500 v. what is the charge on the bead?
The glass bead has a 0.001 m radius. The distance between the first and second points from the bead's center is 0.003 and 0.005 meters, respectively.
How big is a circle's radius?The radius of a circular is the distance a circle's center from any point along its perimeter. Usually, "R" or "r" is used to indicate it.
In geometry, what is a radius?A radius is indeed a line segment that has one endpoint in the circle's center and the other terminus on the circumference of the circle. Circle's diameter equals the radius The diameter of a circle is a line segment that has its ends on the circle and passes through its center. Radius x 2 equals the diameter.
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every winter i fly home to Michigan. it takes 5 hours. what is my average speed?
It depends how far you travel.
If for instance you travel 1000 miles, then your speed is distance/time = 1000/5 = 200 mph
Answer:
first get a map and show how far you are from your original destination since the destination is not well identified where it is in Michigan so just get an approximate distance and then do the calculations
Based on the information in the graph, why is energy released during the fusion of hydrogen (H) into helium (He)?
A. The hydrogen-1 nuclei (H - 1) are more stable than the helium-4 (He - 4) nucleus is, because they have less binding energy per nucleon than the helium has.
B. There are fewer nucleons in a helium-4 (He-4) nucleus than there are in four hydrogen-1 (H - 1) nuclei, so there is more energy released per nucleon when helium forms.
C. The hydrogen (H) nuclei are lower in energy than the helium (He) nucleus is, so more energy is stored in a helium nucleus.
D. The helium (He) nucleus is more stable than the hydrogen (H) nuclei are, because more mass is converted into binding energy in helium.
Answer:
D
Explanation:
Just had the same question and couldnt find and answer so i guessed. heres the answer no lol!
Answer: D.The helium (He) nucleus is more stable than the hydrogen (H) nuclei are, because more mass is converted into binding energy in helium.
Explanation:
apex physics
A bus is moving at an average speed of 70 mph on the motorway. The journey takes 3 hours 30 minutes. How far did the bus travel?.
The bus travelled a total of 245 miles.
We can use the formula:
distance = time x speed
where:
Speed is measured in miles per hour (mph) or metres per second (m/s), and distance is measured in miles or meters.
Time is measured in terms of hours or seconds.
To calculate an object's speed, you must first know how far it has travelled and how long it took to travel that distance.
To calculate the distance that the bus travelled.
first we have to convert the time into hours.
3 hours and 30 minutes = 3.5 hours (since 30 minutes is half an hour).
Now we can use the formula:
distance = time x speed
245 miles = distance
= 70 mph x 3.5 hours
As a result, the bus travelled a total of 245 miles.
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It took Lightning McGreen 2.5 hours to travel
600 kilometers.
How fast was he going in Kilometers an hour?
Answer:
240km/h
Explanation:
speed=distance/time
speed=600/2.5
=240km/h
Answer:
you know the answer
Explanation:
Which statements about grades are accurate? Check all that apply.
A. Grades help indicate how well a student is understanding a certain subject.
B. Students may be required to maintain good grades to participate in certain after-school activities.
C. Colleges and employers may judge students’ potential based on their grades.
D. Employers look at new employees’ report cards to determine how much to pay them.
E. Grades are indicators of whether a student is following rules and other expectations
Answer: I believe that the answer is D
Explanation: I already done the test
Answer:
The following statements about grades are accurate:
A. Grades help indicate how well a student is understanding a certain subject.B. Students may be required to maintain good grades to participate in certain after-school activities.C. Colleges and employers may judge students’ potential based on their grades.The following statements about grades are not accurate:
D. Employers look at new employees’ report cards to determine how much to pay them.E. Grades are indicators of whether a student is following rules and other expectations.Grades are typically based on a student's performance on tests, quizzes, and assignments. They can also be based on a student's participation in class and their overall attitude toward learning. Grades are often used to determine whether a student is eligible to participate in certain activities, such as sports or clubs. They can also be used to determine whether a student is eligible for scholarships or other financial aid.
Colleges and employers may use grades as a way to screen applicants. They may also use grades to determine whether a student is eligible for certain programs or positions. However, grades are not the only factor that colleges and employers consider. They also consider a student's extracurricular activities, work experience, and letters of recommendation.
Grades can be a useful tool for measuring a student's progress and understanding. However, they are not the only measure of a student's success. It is important to remember that grades are just one piece of the puzzle. There are many other factors that contribute to a student's success, such as their work ethic, their motivation, and their support system.
10. Jared and Claire are climbing the stairs. Jared gets tired and stops halfway to the fourth floor. Claire makes it to the fourth floor without a problem. If Jared is twice as heavy as Claire, who has more gravitational potential energy? Explain your answer.
Answer:
They both have the same GPH
Explanation:
GPE = mgh
m = mass of Claire
2m = mass of Jared
h = height of Claire
h/2 = height of Jared
GPE-jared = (2m)(g)(h/2) = mgh
GPE-claire = mgh
They both have the same GPH
a nuclear power plant produces an average of 3800 mwmw of power during a year of operation.
If a nuclear power plant produces an average of 3800 MW of power during a year of operation, it means that the plant has an average power output of 3800 megawatts (MW) over the course of the year.
The term "MW" stands for megawatt, which is a unit of power. It represents one million watts. Power is the rate at which energy is generated or consumed.The average power output of 3800 MW indicates the average rate at which the nuclear power plant is producing and supplying electrical energy to the grid or other systems over the duration of one year.
It's important to note that this average power output may vary throughout the year, depending on factors such as demand, maintenance, and operational requirements. However, the average value of 3800 MW provides an indication of the power capacity and performance of the nuclear power plant over an extended period.
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What is the approximate tangential speed of an object orbiting Earth with a radius of 1.8 x 108 m and a period of 2.2
x 104 s?
O 7.7 x 10-4 m/s
O 5.1 x 10 m/s
7.7 x 104 m/s
5.1 x 105 m/s
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In the case where the period is 2.2 x 104 s, the rotational speed is given by 1 / 2.2 x 104 = 4.55 x 10-5 rad/s. Utilizing the equation v = r, we can find the tangential speed. in which the rotating speed is
The linear or tangential speed is denoted by v.
r stands for radius. The result is that v = 4.55x10-5(1.8x108), or 5.1 x 104 m/s.
A sentence's object is defined as what?To refer to the item or person that is the target of an action, we typically use the word "object." Alternatively, the recipient. In a sentence, a verb's action is transferred to a noun or pronoun as a direct object. Usually, it responds to the inquiries what or whom. relating to the verb.
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Tariah is riding on her bike at 4m/s (North). If she accelerates at a rate of 1.5 m/s^2 for 2 s, what is her final velocity?
ANSWER:
7 m/s
STEP-BY-STEP EXPLANATION:
Given:
Initial velocity (u) = 4 m/s
Acceleration (a) = 1.5 m/s^2
Time (t) = 2 s
We can calculate the final velocity using the following formula:
\(v=u+a\cdot t\)We replace and calculate the value of the final velocity:
\(\begin{gathered} v=4+2\cdot1.5 \\ v=4+3 \\ v=7\text{ m/s} \end{gathered}\)The final velocity is equal to 7 m/s.
If an object is stationary (not moving), what must the net force be equal to?
Answer:
Firstly, we can state that the net force is the sum of all forces acting upon the object. Since the object is stationary, by Newton's First Law we can conclude that the sum of all forces acting upon a stationary object is 0 because there are no forces acting upon the object.
Explanation:
Please support my answer.
the secondary rainbow is dimmer than the primary rainbow mainly because
The secondary rainbow is dimmer than the primary rainbow mainly because it is created by a second reflection and refraction of light within raindrops. The primary rainbow is formed when sunlight enters a raindrop and is refracted, or bent, as it passes through the water droplet.
The light is then reflected off the inner surface of the raindrop and refracted again as it exits the droplet, resulting in the primary rainbow.
However, for the secondary rainbow, the light undergoes two reflections and two refractions within the raindrop before it exits. This additional reflection and refraction causes the light to spread out more, resulting in a larger angle between the colors of the rainbow. This spreading out causes the secondary rainbow to be dimmer than the primary rainbow, as more light is lost due to the larger angle between the colors.
In addition, the secondary rainbow is also less common than the primary rainbow, as it requires a specific set of atmospheric conditions to form. It is typically seen outside the primary rainbow and has its colors reversed, with red on the inner edge and violet on the outer edge.
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examples of nonmechanical energy
Explanation:
Non-mechanical energy is energy of particles or objects that are too small to be seen. (Atoms, molecules, electrons, photons, protons, etc.) Types of Non-Mechanical Energies - thermal (heat), acoustic (sound), chemical, nuclear, electrical, and radiant (light).
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The examples of non-mechanical energy are light energy, heat energy, chemical energy, or nuclear energy.
• The energy, which an object possess due to its position or motion is known as the mechanical energy, this can be either potential energy or kinetic energy.
• On the other hand, the energy, which does not fall into the category of energy from movement or position is known as the non-mechanical energy.
• The examples of non-mechanical energy are light energy, heat energy, chemical energy, or nuclear energy.
• Both of these kinds of energy are illustrated by the tendency to perform an activity.
Thus, nuclear energy, light energy, heat energy, or chemical energy are the examples of non-mechanical energy.
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what is the acceleration (in m/s2) of gravity on the surface of the moon? m/s2 (b) what is the acceleration (in m/s2) of gravity on the surface (or outer limit) of venus? the mass of venus is 4.88 ✕ 1024 kg and its radius is 6.06 ✕ 106 m.
The acceleration due to gravity on the surface of the Moon is 1.635 m/s² and on the surface of Venus is 8.8634 m/s².
What is the acceleration due to gravity?There is acceleration, gravitational force, and acceleration due to gravity, all three are completely different from each other.
Acceleration due to gravity denoted by 'g' is the combined force of centrifugal force and gravitation force.Here g= 9.8 m/s² this force is caused by the force acting on the body due to the gravitational field.We know that the acceleration of gravity on the moon = 1/6 acceleration of gravity on the Earth
Therefore, the acceleration of gravity on the surface of the moon is given as
= 9.81 / 6
= 1.635 m/s²
b) For any planet (Venus) the acceleration of gravity is given as
g = GM/ R²
G = 6.67 × 10⁻¹¹
M = 4.88 × 10²⁴
R = 6.06 × 10⁶
g = ( 6.67 × 10⁻¹¹)(4.88 × 10²⁴) / (6.06 × 10⁶)²
g = 8.634 m/s²
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what is diamagnetic materials, paramagnetic materials, ferromagnetic materials?
Answer:
Diamagnetic materials are those that some people generally think of as non-magnetic, and include water, wood, most organic compounds such as petroleum and some plastics, and many metals including copper, particularly the heavy ones with many core electrons, such as mercury, gold and bismuth.
Paramagnetic Materials: These are metals that are weakly attracted to magnets. They include aluminum, gold, and copper. The atoms of these substances contain electrons most of which spin in the same direction but not all.
Ferromagnetic materials are those materials which exhibit a spontaneous net magnetization at the atomic level, even in the absence of an external magnetic field. When placed in an external magnetic field, ferromagnetic materials are strongly magnetized in the direction of the field.
Explanation:
______ involves the complete breakdown of glucose in the presence of oxygen gas to yield carbon dioxide, water, and energy in the form of atp.
Answer:
Cellular respiration involves the complete breakdown of glucose in presence of oxygen gas to yield carbon dioxide ,water , and energy in the form of atp
A DSB-SC modulated signal is transmitted over a noisy channel, with power spectral density of white noise being 0.5x10 watts/Hz. The message bandwidth is 4 kHz and the carrier frequency is 200 kHz. Assuming that average power of modulated wave is 10 Watts, determine output signal-to-noise ratio of the receiver.
The average power of the modulated wave is 10 Watts and the noise power is 0.5 x 10 Watts/Hz x 4 kHz = 2 Watts. Therefore, the SNR is 10/2 = 5, in decibels, 10 log (10/2) = 7.9 dB.
The signal-to-noise ratio (SNR) of the receiver output is the ratio of the average power of the modulated wave to the noise power.
The SNR is a measure of the power of the signal relative to the noise. A higher SNR means that the signal is more powerful relative to the noise, which means that there is a higher chance of the signal being accurately decoded by the receiver.
In this case, the output SNR of the receiver is 7.9 dB, which is a relatively low value, but still indicates that the signal has a higher power than the noise and is more likely to be decoded correctly.
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Complete question :-
A DSB-SC modulated signal is transmitted over a noisy channel, with spectral density has an power value of white noise being 0.5x10 watts/Hz. The message bandwidth is 4 kHz and the carrier frequency is 200 kHz. Assuming that average power of modulated wave is 10 Watts, determine output signal-to-noise ratio of the receiver.
Object A represents fixed negatively charged particle and Object B represents fixed. positively-charged particle. Object ( shows a
moving positively charged particle. Identify which arrow would correctly show the force of attraction or repulsion on object C caused
by the other two objects?
Answer:
Moving electrons by cringing the object near another charged object ... This means that there is a different number of protons and electrons ... the attraction or repulsive electrostatic force between positive and negative charges ... the amount of charge on the particle and the distance between the particles ... fixed in position.ation:
13.2.2 7+6 - 9(-2)+(-3)
Answer:
34.27 is the answer