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A 0.2-kg steel ball is dropped straight down onto a hard, horizontal floor and bounces straight up. The ball's speed just before and just after impact with the floor is 10 m/s. Determine the magnitude of the impulse delivered to the floor by the steel ball.
If the projectile rises to a maximum height of only 10.2 m, identify the magnitude of the average force due to air resistance.
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, Determine the centripetal acceleration of the moon
A 5 kg block slides down an inclined ramp at approximately constant velocity. The ramp angle is 23 degrees counter clockwise from the horizontal. What is the value of the force on the block due to friction between the block and the ramp? Show work..
A bus is traveling up a hill at a speed of 34m/s. The hill is 23 degrees relative to horizontal and the coefficient of static friction between the bus's tires and the road is 0.6
A 45.0 kg person, standing 1.3 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.80 m/s relative to the ground. Find out the resulting angular speed of the disk (in rad/s)
What is the acceleration at the top of a jump?
A bucket filled with water has a mass of 23 kg and is attached to a rope, which in turn, is wound around a 0.050-m radius cylinder at the top of a well. Illustrate what torque does the weight of water and bucket produce on the cylinder if the cyli..
Algol consists of a 3.7 MSun main-sequence star and a 0.8 MSun subgiant. Why does this seem surprising, as a minimum at first.
Illustrate what would be the relative strengths and weaknesses of this study? What ethical considerations must be taken into account while undertaking this study?
How to compute the average force
An electron of mass, m, collides with an atom of mass M. The atom is initially at rest, What is the minimum speed of the electron in order to excite the atom
What is the acceleration (magnitude and direction) of pebble during the downward motion.
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