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A hand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 24.0 cm.
(a) How much work do you do in one stroke if the average gauge pressure is 2.40 ? 105 N/m2 (about 35 psi)? (You may consider this an isothermal process.)
(b) What average force do you exert on the piston, neglecting friction and gravity?
A student moves a box of books by attaching a rope to the box and pulling with a force of 90.0 N at an angle of 30.0 degrees. Find the acceleration of the box
calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is measured to be 900 V.
The initial angle of the ball’s motion off the tee is 29.0° above the horizontal. If the tee level is 17.0 m above the level of the fairway, explain how far east of the tee does the ball hit the fairway?
Which is cheaper for the company: to buy or lease real estate? Show your computations. Illustrate what non-quantitative factors should the management consider when making the decision?
In the August 1992 space shuttle fight, only 250 m of the conducting tether could be let out. What was the angle between the shuttle's velocity and the Earth's field, assuming the conductor was perpendicular to the field
A small package rests on the horizontal dashboard of a car. If ?s = 0.302, what is the minimum acceleration of the car
A garden hose with a diameter of 0.67in. has water flowing in it with a speed of 0.82m/s and a pressure of 1.3 atmospheres. Find the pressure in the nozzle
A chair of mass 13.0kg is sitting on the horizontal floor; the floor is not frictionless, Use Newton's laws to calculate the normal force that the floor exerts on the chair
A potential difference V is applied to a wire of cross section A, length L, and resistivity ?. You want to change the applied potential difference, What should be the new values of L and A in terms of the old values
nozzle of a hose is pointing straight up. the water rises to a height h above nozzle openig. how high does the water rise
A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box, Find the acceleration of the box
When a large bone such as the femur is broken, the two pieces are often pulled out of alignment by the complicated combination of tension, how much mass m must be attached to the bottom pulley
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