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A hole of radius r has been drilled in a flat, circular plate of radius R. The centre of the hole is at a distance d from the centre of the circle. The mass of the whole body was M. Determine the moment of inertia for rotation about an axis through the centre of the plate.
Water is lifted out of a well 22.0m deep by a motor rated at 1.40hp .Assuming efficiency 90% , how many kilograms of water can be lifted in 1 min
A piece of glass has a temperature of 80.6 ° C. Liquid that has a temperature of 43.0 ° C is poured over the glass, determine the specific heat capacity of the liquid
Suppose the strings on a violin are stretched with the same tensionand each has the same length between its two fixed ends. Themusical notes and corresponding fundamental frequencies of two ofthese strings are G (196.0 Hz) and E (659.3 Hz).
A 2.5-m long board with a mass of 12 kg is placed on a bar so that it is perfectly balanced, i.e., A 22-kg child sits on the left end of the board. What is the torque they exert on the system
Suppose you take a 2.0×10^2ohm resistor and a 0.40 H inductor and make a series circuit with a voltage source that has voltage amplitude 30 V and an angular frequency of 2.5×102 rad/s. What are the voltage amplitudes across the resistor and across ..
A radio station broadcasts a signal at a frequency of 800 kHz. at a point 100 km from the transmitter the magnetic field amplitude of the electromagnetic wave from this station is 5.00 * 10^-11 T.
An ideal gas has its pressure cut in half slowly, while being keptin a container with rigid walls. In the process 265KJ of heat isleft in the gas: How much work is done during the process
A 21.0 kg child on a 1.00 m long swing is released from rest when theropes of the swing make an angle of 33.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
A Proton is traveling horizontally to the right at 4.5 x 106 m/s. Find how much time does it take the proton to stop after entering the field
two parallel plate capacitors have circular plates. the magnitude of the charge on these plates is the same. however
A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration.
A commuter train blows its horn as it passes a passenger platform at a constant speed of 39.1 m/s. Calculate the wavelength for the receding train
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