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How long does it take for a golf ball to fall from rest for a distance of 12.0 m? How far would the ball fall in twice that time?
q1. a 750 gram grinding wheel 25.0 cm in diameter is in the shape of a uniform solid disk. we can overlook the small
If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, throughout how various revolutions will the rotor turn before coming to rest.
High-speed stroboscopic photographs show that the head of a 184 g golf club is traveling at 35.2 m/s just before it strikes a 45.9g golf ball at rest on a tee
On vacation, your 1350 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 2.15 m/s2. What force does the trailer exert on the car
Two Satellites A and B, each of mass 50 kg are in circular orbits at altitudes of 1000 km and 35000 km respectively. What is the difference in gravitational potential energies of the two satellites in their respective orbits
A 2.4 kg mass is placed on top of a vertical spring. the spring is compressed 4.2 cm. What is the energy stored in the spring
An athlete swings a 3.90-kg ball horizontally on the end of a rope. The ball moves in a circle of radius 0.840 m at an angular speed of 0.670 rev/s. What is the tangential speed of the ball
Maddie is standing still when her dancing partner, Paul, begins to lift her up and throw her into the air. What is Maddie's vertical velocity when Paul releases her
The nucleus of the hydrogen atom has a radius of about 1.1 Ã- 10-15 m. find the volume of the nucleus
What should be the spring constant of a spring designed to bring a 1500 car to rest from a speed of 80 so that the occupants undergo a maximum acceleration of 5.
A ray of sunlight hits a frozen lake at a 43.9° angle of incidence. At what angle of refraction does the ray penetrate the ice
a boat takes 3.00 hrs to travel 25.0 km down a river then 6.00 hrs to return. how fast is the river moving
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