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Question: A typical ten-pound car wheel has a moment of inertia of about 0.35kg *m2. The wheel rotates about the axle at a constant angular speed making 70.0 full revolutions in a time interval of 5.00 seconds. What is the rotational kinetic energy K of the rotating wheel? Express answer in Joules
Determine the tangetial and centripetal components of the netforce exerted on the car when its speed is 15 m/s. The car's massis 1100 kg
What is the wavelength of an 102.1 FM radio station and What is the wavelength of an 1310 AM radio station
A playground merry-go-round of radius R = 1.20 meter has a moment of inertia I = 265 kg•m2 and is rotating at 12 rpm about a frictionless vertical axle. Evaluate the new angular speed of the merry-go-round
A balloon contains 0.63 mol of helium. It rises, in maintaining a constant 280 K temperature, to an altitude where its volume has expanded three times. How much work is done by the gas during this isothermal expansion?
A spherical balloon has a radius of 6.75m and is filled with helium. The density of helium is 0.179 kg/m3, Determine the largest mass of cargo the balloon can lift
A voltmeter is connected in parallel to a resistor when measuring Vi. Why is the measured voltage across a 10 M Ω resistor not equal to the voltage measured across a power supply?
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1 rad/s. If the moment of inertia increases to 3 kg*m2, what is its new rotational velocity
A 52.0 kg mass attached to a spring oscillates with an amplitude of 2.25 m. The total mechanical energy of the system is 410 J. Find the position of the mass
A RC helicopter is placed on a circular platform that can rotate freely about its center axis. Explain with a diagram what forces are acting on the helicopter as it is sitting on the platform.
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
A convex spherical mirror has a radius of curvature of 10 centimeter. Find the location of the image formed by an 7.65-mm tall object whose distance from the mirror is 14 centimeter
An electron that has a horizontal initial speed of 4.50 x 106 m/s enters a region that has an electric field of 120V/m pointing vertically upward. find what is the vertical displacement of the electron
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