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Q. A cart of mass M = 3 kg can roll without friction on a level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.90 kg. The cart is released from rest, allowing it to roll, pulled by the falling hanger. What is the formula for the acceleration a of the hanger in terms of the tension T, the hanger's mass m, and the acceleration of gravity g? What is formula for the acceleration a of the cart in terms of the tension T, and its mass M? make use of the two equations you found above to eliminate T to give the acceleration of the cart in terms of M, m and g. Compute the numerical value for the acceleration (Assume g = 9.81 m/s2).
What is the tension in the cord in the original situation. A cube of ice is taken from the freezer at -9.3°C and placed in a 95 g aluminum calorimeter filled with 297 g of water at room temperature of 20°C. The final situation is observed to be all..
Clifford is in a real hurry, however, and skips the speed ramp. Starting from rest with an acceleration of 0.49 m/s2, he covers the same distance as the ramp does, but in one-fourth the time. What is the speed at which belt of the ramp is moving.
What is the boats average speed. imagine the mass of the dishwater is large enough so its temperature doesn't change appreciably.
write down the equations expressing conservation of momentum for the components in the x and y directions separately.
Guess scale factor of the Universe
A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narro..
What will be its length and height at rest
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
The aluminum bomb has a mass of 0.725 kg and is placed in 2.6kg of water contained in an aluminum calorimeter cup of mass 0.624 kg. The initial temperature of the mixture is 15°C, and its temperature after ignition is 53.5°C.
What is the terminal speed for an 84.00 skier going down a 38.0 degree snow-covered slope on wooden skis = 0.06? Assume the skier is 1.70 m tall and 0.500 m wide.
How much work is needed to move a 120-kg refrigerator.
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