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A 0.245 kg ball is thrown straight up from 1.94 m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.
A 0.120 kg block on a horizontal frictionless surface is attached to the spring whose force constant is 572 N/m. The block is pulled from its equilibrium position at x = 0 m to a displacement x = +0.080 m and is released from rest. The block after th..
Physics - Potential Energy - Gravitational Force A satellite has a mass of 100 kg and is located at 2.00 x 10^ 6 m above the surface of earth. (A) What is the potential energy associated with the satellite at this location?
An object has a charge of -4.3 ?C. How many electrons must be removed so that the charge becomes +2.8 C?
Capacitance and resistance network.
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
Three point charges Q1 = 2.2 mu or micro C, Q2 = 4.2 mu or micro C and Q3 = 3.2 mu or micro C, are arranged as shown
Vector A has components of +3 in the x-direction and -4 in the y-direction. Vector B has components -2 in the x-direction and +3 in the z-direction
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
If the skier's speed at point A in the figure below is 8.1 m/s, illustrate what is the normal force exerted by the snow on the skier at point B? Ignore frictional forces.
A long, narrow rectangular loop of wire is moving toward the bottom of page with a speed of 0.025 m/s. The loop is leaving a region in which a 2.1 T magnetic field exists; magnetic field outside this region is zero. All through the time of 1.0 s, wha..
An athlete at a gymnasium holds a 3.0kg steel ball in his hand. His arm is 70cm long and has a mass of 4.0kg. Calculate the magnitude of the torque about his shoulder if he holds his arm
Find the maximum altitude reached by the rocket.Find its total time of flight.
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