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Two objects are attached to ropes that are attached to wheels on a common axle as shown below. The two wheels are glued together so that they form a single object. The total moment of inertia of the two wheels is 36 kg · m2. The radii of the wheels are R1 = 1.3 m and R2 = 0.50 m. (a) If m1 = 24 kg, find m2 such that there is no angular acceleration of the wheels. (b) If 12 kg is gently added to the top of m1, find the angular acceleration of the wheels. Find the tension in the rope holding m1. Find the tension in the rope holding m2.
A spherical capacitor contains a charge of 3.40nC when connected to a potential difference of 250V. Calculate the electric field just outside the surface of the inner sphere
What is the electric potential energy of the system. A man strikes a long aluminum rod at one end. Another man, at the other end with his ear close to the rod, hears the sound of blow twice (once through the air and once through the rod), with a 26..
At very fast car races the sound of the engine as a car approaches is much different than when it passes you. How fast would the car need to be going to have the change in frequency be one octave
Suppose a patient having an MRI is immersed in a 3.0 T field along the axis of his body. He then quickly tips his head to the side, toward his right shoulder, tipping his head by 30 degrees in the rather short time of 0.15 s.
Refrigerant r-134a flows through a refrigeration system at a rate of 0.12 kg/s. At the entrance to the adiabatic compressor, find the power required by the compressor
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 4.57 m/s relative to the ground. How fast is the train moving
A girl hits a puck, giving it an initial velocity of 6m/s. If the coefficient of kinetic friction is 0.050, how far will the puck slide before stopping
the mean fee path of air molecules at 0 C and 1 ATM is about 2*10^-5 cm. what is the effective molecular diameter of an air molecule
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the magnitude of the net torque applied to the car
A speedboat moving at 35.0 m/s approaches a no-wake buoy marker 100 m ahead. How long does it take the boat to reach the buoy
A simple 2.32 m long pendulum oscillates. The acceleration of gravity is 9.8 m/s2. How many complete oscillations does this pendulum make in 5.58 min
One fires a bullet (m=50g) at a block of wood (m=2kg) resting on a frictionless surface. How much energy is lost
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