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A man heats up a can of soup on a stove. If he does 200 Joule of work on the soup by stirring it as the burner adds 950 Joule of heat, find what the change in its internal energy?
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7 kg . The mass of the hanging block is = 2.9 kg.
Airtight box has a removable lid of area 1x10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.85x 10^5Pa. The inside of the box is completely evacuated. What is the magnitude of the force essen..
The plates of a parallel-plate capacitor are 3.00mmapart, and each carries a charge of magnitude 75.0nC. The plates are in vacuum. What is the area of each plate
A μ (moun) moving by us at 0.60c is observed to decay into an electron and two neutrinos. The electron is given off in the forward direction. Its velocity with respect to the lab is 0.99 c. what is its velocity by respect to the muon?
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.360 s to passthis window, which is 2.00 m high. How far is the top of the windowbelow the windowsill from which the flowerpot fell?
a hot-air balloon is open at the bottom. the balloon which has a volume of 214 m3 is filled with air that has an
the electric field at the point x 5.00 cm and y 0 points in the positive x direction with a magnitude of 15.0 nc. at
a 28kg suitcase is being pulled with constant speed by a handle that is at an angle of 30circ above the horizontal. if
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
A mining cart is pulled up a hill at 20 km/h and then pulled back down the hill at 33 km/h through its original level. What is the average speed of the cart for its round trip
A car is traveling in the x direction with a velocity of 20 m/s. The driver applies the brakes, What is the stopping distance
A 30.0- goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50×10?2 and period 1.50. What is the maximum acceleration of the finch
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