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A 56 kg pole vaulter running at 10m/s vaults over the bar. Her speed when she is above the bar is 0.7m/s. Neglect air resistance, as well as any evergy absorbed by the pole, and determine her altitude as she crosses the bar.
A 37.8 kg box initially at rest is pushed 5.27 m along a rough, horizontal floor with a constant applied horizontal force of 81.3836 N. Find the work done by the friction
The bolts on a car wheel require tightening to the torque of 90 N•m. If a 30 cm long wrench is used, what is the magnitude of the force necessary when the force applied at 53° to the wrench.
A soccer player kicks the ball toward a goal that is 23.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
An aircraft flying at 100 mph TAS at 5000 ft pressure altitude on a standard day experiences a clogged static port. What is the average velocity around the cockpit
A 56 kg astronaut floating at rest in space outside a space capsule throws his 0.50kg hammer such that it moves with the speed of 14.00 m/s relative to the capsule. What happens to the astronaut? What is the astronaut's speed.
The pressure in a traveling sound wave is given by the equation %u0394p=(1.50 Pa)sin((%u03C0/2.)*(0.90 m-1x -297.0 s-1 * t)). Find the pressure amplitude
A wheel starts from rest and rotates about its axis with constant angular acceleration. What is the angular velocity when the time t = 6.7 s
An ideal refrigerator does 160 J of work to remove 570 J of heat from its cold compartment during each cycle. What is the refrigerator's coefficient of performance
A 2.8-cm-diameter parallel-plate capacitor has a 2.4mm spacing. The electric field strength inside the capacitor is 1.4×105V/m. How much charge is on each plate
An aircraft weighing 959 N is accelerated at 9 m/s/s for 11 seconds, How much work was done on the aircraft
A 68 kg person sits on a 4.0 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.2 cm in diameter . Find the pressure exerted on the floor by each leg of the chair, assume the weight is evenly distributed.
What is total mechanical energy of the motion
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