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Questions: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air at a speed of 22.0 m/s. In the process, he moves his hand through a distance of 1.30 m. If the ball has a mass of 0.150 kg, find the force he exerts on the ball to give it this upward speed.
Consider a solid sphere, mass = 4.0 kg, that is spinning with an angular velocity of 23 radians/second.The diameter of the sphere is 0.20 meters
X-rays having an energy of 350 keV undergo Compton scattering from a target. The scattered rays are detected at 37.0° relative to the incident rays. Find the energy of the recoiling electron
If a disk rotating at 10 rad/s has a moment of inertia of 0.5 kg m^2. Then another disk with a total mass of 5 kg, What is the angular speed of the new system in units of rad/s
A large truck collides head-on with a small car. how do the forces acting between the truck and car compare during the collision
Find out (a) capacitance and (b) maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 mm.
A 5g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.81 m long barrel of rifle.
Calculate how long it will take a ball to hit the ground if dropped from a height of 44 m,
A building has two open doors facing the bay. The walls of the building absorb sound well, so multiple reflections can be ignored. Two people are standing a distance L = 150 m from the wall with the open doors, as pictured.
A jeweler working with a heated 47 g gold ring should lower the ring's temperature to make it safe to handle. If the ring is initially at 99 degrees Celcius, what mass of water at 25 degrees Celcuis is needed to lower the ring's temperature to 38 ..
A rectangular container measuring 23 cm 51 cm 65 cm is filled with water. What is the mass of this volume of water in kilograms and grams.
A 300-g aluminum cup contains 1000 g of water in thermal equilibrium with the cup at 65°C. At what rate is energy being removed
Two charged bodies exert a force of .145N on each other. If they are now moved so they are one fourth as far apart, what force is exerted.
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