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A 59.0 kg cheerleader uses an oil-filled hydraulic lift to holdfour 130 kg football players at a height of 1.20 m. If her piston is 19.0 cm in diameter, what is the diameter of the football players' piston?
A gun shoots small plastic balls. The ball falls 1.2 m while traveling horizontally 5.1 m. Calculate the speed the ball leaves the gun
Consider a chain with length 0.9 m and mass per unit length 0.6 kg/m. Suppose it is initially suspended above a table so that the lower, What is the force when one-half of the chain lies on the table
A 1.7kg object is at rest. A3N force to the right acts on theobject during a time interval of 1.5s. find the velocity of the object at the end of this interval
Three capacitors are connected as follows: 3.74 F capacitor and 4.52 F are connected in series, What is the capacitance of the total combination
A 3.83 ohm resistor, a 7.53 ohm resistor, and a 9.02 ohm resistor are connected in series with a 15.0 V battery. What is the current in each resistor
A person pushes horizontally with a force of 220 N on a 66 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.28. What is the magnitude of the frictional force
A long jumper (as shown in the figure) leaves the ground at an angle of 17.0° to the horizontal and at a speed of 10.6 m/s. How far does he jump
A turbine fan in a jet engine has a moment of inertia of 2.5 kgm^2 about its axis of rotation. Find the fan's angular momentum and the net torque acting on the fan as functions of time
During the supine bicycle exercise, analysis the shoulder, the hip, and the knee during the movement phase: What motions are occurring at the joint, What are the planes and axes of the movement
a generator has a 140-turn square coil 5 cm on a side.a find the peak emf in this coil when its rotating at 110hz in
A parallel-plate capacitor has circular plates of 10.1 cm radiusand 1.28 mm separation. (a) Calculate the capacitance in picofarads. (b) What charge in nanocoulombs will appear on the plates if a potential difference of 135 V is applied?
A small plane is dropping emergency supplies to a fishing boat that has been blown out to sea. How far from the boat will the supplies land
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