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A boy can throw a ball a maximum horizontal distance of40.0 m on a level field. How far can he throw the same ball vertically upwards? Assume the ball has the same speed in each case.
A piano worker pushes a 5670 N piano up a 13 degree ramp at a constant velocity. find the magnitude and direction of the worker's push
On a hot summer day a young girl swings on a rope above the local swimming hole. how high above the water was she when she let go of the rope
What is ratio of the applied force
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
On a workday the average decibel level of a busy street is 72.0 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 50 every minute on a weekend, what is the decibel level of street.
The ropes in the figure below are each wrapped around a cylinder, and the two cylinders are fastened together. What is the angular acceleration of the cylinders
A small metal cylinder rests on a circular turntable that is rotating at a constant speed as illustrated in the diagram (Figure 1) . The small metal cylinder has a mass of 0.20kg , the coefficient of static friction between the cylinder and the tu..
An electron is moving at a speed of 1.0 x10^4 m/s in a circular path of radius of 2.1cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.
A standing wave pattern is created on a string with mass density = 0.00035 kg/m . A wave generator with frequency f = 62 Hz is attached to one end of the string and the other end goes over a pulley and is connected to a mass (ignore the weight of ..
What is the frequency of rotationA 10kg baby is perched at the rim of a 40kg disk. The disk rotates freely in a horizontal plane at 1 rev/s. What is the frequency of rotation in rev/s when the baby arrives at the center
Two people carry a heavy electric motor by placing it on a light board 2.70m long. One person lifts at one end with a force of 380N, Where is its center of gravity located
A projectile is launched from a 300 m high cliff at an angle of 30? with an initial velocity of 150 m/s. (g=9.8m/s2). determine the Magnitude of the velocity on impact
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