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A 0.04 kg ball is thrown from the top of a 30 m tall building at anunknown angle above the horizontal. The ball attains a maximumheight of 10 m above the top of the building before striking theground. Neglecting air resistance, find the change in kineticenergy for the trajectory.
An ideal gas undergoes the process a - b - c. Pa = pc = 200. kPa, Vb = Vc = 40.0x10-3m3, and Pb = 400.kPa. How much work is done by the system in this process
Three air carts have masses, 4m,2m and m. the most massive cart hasan initial speed of Vo; the other two carts are at restinitially. All carts are equipped with spring bumpers that giveelastic collisions.
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A 66kg rock climber is climbing a so called chimney between two rock slabs, What is her push against the rock
an apparatus that liquefies helium is in a room maintained at 306 k. if the helium in the apparatus is at 4.0 k what is
A highway is to be built between two towns, one of which lies 30.0 km south and 83.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?
A photographer in a helicopter ascending vertically at a constant rate of 12.5 m/s accidentally drops a camera out the window, How long will it take the camera to reach the ground
a closed frictionless piston-cylinder assembly contains 4 lbm of h20. beginning with an initial volume of 10 ft3 the
A cube of ice is taken from the freezer at -8.5°C and placed in a 97 g aluminum calorimeter filled with 292 g of water at room temperature of 20°C. The final situation is observed to be all water at 18°C. What was the mass of the ice cube?
a person exerts force of 35n on the end of an door 88 cm wide, what is the magnitude of torque if the force is exerted perpendicular to the door
A golf ball is shot from a tee, elevated 20.0 m above the green, what will be the speed of the golf ball just before it hits the green, 20.0 m below where it started
what is the maximum mass that can hang without sinking from a 90cm diameter styrofoam sphere in water? assume the
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