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Solve the all parts of given problem:
Problem: A girl throws a 0.2 kg ball a distance of 6m straight up in the air (assume no air resistance).
Part A: What is the kinetic energy of the ball as it leaves the girls hand?
Part B: How much work does the girl do in throwing the ball?
Part C: If the girl's arm muscle contracted a distance of 0.050 m while throwing the ball, what is the average force exerted by the muscle?
I need help to determine the kinetic energy of the ball as it leaves the girls hand.
a sled with a child sliding down from rest at 14 degree hill has a mass of m120kg. the length of the hill is 60 m and
Charge of -3.30 nC and a charge of -6.25 nC are separated by a distance of 40.0 cm. Find out the position at which a third charge of +7.60 nC can be placed so that the net electrostatic force on it is zero.
A thunderstorm may be considered as dipole with a charge -q at cloud level, h and its image in the Earths conducting surface, +q at a depth of -h. Calculate the electric filed at the ground
Calculate the momentum pi at the end of the plane in terms of the measured quantities x, y, L, and m. how far will it coast back up the ramp before changing directions
A speeder is pulling directly away and increasing his distance from a police car that is moving at 25 m/s with respect to the ground. Compute the speeder speed with respect to the ground
A block of mass m = 2.00 kg is attached to a spring of force constant k = 4.65 102 N/m that lies on a horizontal frictionless surface, Find the speed the block has as it passes through equilibrium
Find the force necessary to give a proton an acceleration of 5.0 1019 m/s2 when the proton has the following velocities (along the same direction as the force)
A spring is compressed by 0.0612 m and is used to launch an object horizontally with a speed of 1.64 m/s.at what angular frequency (in rad/s) would it oscillate
A wire 25.1 m long and 6.00 mm in diameter has a resistance of 15.0 m. A potential difference of 27.0 V is applied between the ends. Calculate the resistivity of the wire material
Find what force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 33.1 centimeter
A person rides a motorbike 190 m along a road that slants upward at 9.0 o from the horizontal. How far has the rider gone in the horizontal direction? How much higher will the rider be at the end of the trip?
You need to design an industrial turntable that is 55.0 centimeter in diameter and has a kinetic energy of 0.245 Joule when turning at 45.5 rpm (rev/min). Find what must be the moment of inertia of the turntable about the rotation axis
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