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A small statue is recovered in an archaeological dig. Its weight is measured to be 8.4 lb and its volume 0.04 ft3.
(a) Find what is the statue weight density?
(b) Find what substance is it, most likely?
A 35.5 kg girl and a 58.0 kg boy are on the surface of a frozen lake, 12.5 m apart. Using a rope, the girl exerts a horizontal 4.60 N force on the boy, pulling him toward her. Draw a free body diagram. Compute the magnitude of the girl's acceleration
A bottle containing 2 kg of water at a temperature of 15°C is placed in a refrigerator where the temperature is kept at 4°C.
0.14 kg of water at 88.0 deg C is poured into an insulated cup containing 0.234 kg of ice initally at 0 deg. Calculate the mass of liquid
A coin with a diameter of 2.50 cm is dropped on edge onto a horizontal surface. how far does the coin roll before coming to rest
A block mass of 4.00 kg is pulled 13.7 m along a frictionless horizontal table by a constant 15.8 N force direction 43 degrees above the horizontal. Find the work done by the applied force.
During a week of study, a 9.0 acre pond receives 65 mm of rain. An adjacent Sunken Colorado pan records an evaporation of 38 mm. What is the net change of water volume in the pond
If 1 mol of oxygen is heated at a constant pressure of 1 atm from 10 C to 25 C. What is the change of volume of the gas in this process
A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
a heat engine takes in 150 kj of energy from a source at 740 k and expels 50 kj to a reservoir at 300 k. calculate the
A 51 crate, starting from rest, is pulled across a floor with a constant horizontal force of 250 . For the first 11.5 the floor is frictionless, and for the next 11.5 the coefficient of friction is 0.16. what's the final speed.
How long after the arrow was shot must the apple be dropped, in order for the arrow to pierce the apple as the arrow hits the tree.
Explorer is caught in a whiteout (in which snowfall is so thick that the ground cannot be distinguished from the sky) as returning to base camp.
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