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A ball of mass 1.5 kg is thrown upward. It leaves the throwers hand with a velocity of 10 m/s. The following questions refer to the motion after the ball leaves the throwers hand. Assume that the upward direction is positive.
Determine the change in momentum of the ball?
Find how long does it take for the ball to return to the throwers hand?
Find the impulse determined from the change in momentum?
Obtain the final velocity of the ball just before it reaches the hand?
Calculate the average force acting on the ball?
After the ball hits the thrower's hand, it comes to rest in 0.25 sec. Find what is the net impulse exerted on the ball?
Compute the average force exerted on the ball by the hand after it comes to rest (Hint: Don't forget the gravitational force)?
The starter motor of a car engine draws an electric current of 42.0 A from the battery. The copper wire to the motor is 5.70 mm in diameter and 1.36 m long. How much electric charge passes through the starter motor
A merry-go-round rotates from rest with an angular acceleration of 1.50 rad/s^2. How long does it take to rotate through (a) the first 2.00 rev and (b) the next 2.00 rev?
A 4.60-kg ball is dropped from a height of 10.0m above one end of a uniform bar that pivots at its center. How high will the other ball go after the collision
You launch a rock from the origin (0,0) with an initial speed of 50 m/s at an angle of ?o=30° from horizontal. How far horizontally will the rock travel before it lands
On a spacecraft two engines fire for a time of 589 s. One gives the craft an acceleration in the x direction of ax = 5.05 m/s2, Calculate the magnitude of the initial velocity
A 4.4 kg block of aluminum is heatedat atmospheric pressure so that its temperature increases from28.5°C to 44.0°C. Find the change in the block's internal energy
How many grams of gasoline are required to impart a velocity of 26 meters/sec (60 miles per hour) using the same engine and neglecting losses that may be higher at the higher velocity
A football is thrown at a speed of77 mph at a wall that is 52 ft away. Upon colliding with the wall thefootball exerts 43 lb of force due north onthe wall. How much force does the wall exert on the football and in what direction?
What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?
A thin layer of oil (n=1.50) floats on water. Destructive interference is observed for reflected light of wavelengths 480 nm and 600 nm, Find the two minimum thickness of the oil film
You have a sample of Xenon in a rectangular container. The gas exerts a total force of 3.37 N perpendicular to one of the container walls, Calculate the pressure of your sample
A 5439 N car traveling at 52m/s up an incline that is at an angle of 5.0 degrees about the horizontal, brakes, coming to rest in 124m. What is the braking force
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