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A man whose mass is m kg jumps vertically into air from a sitting position in which his centre of mass is at a height h1 from the ground. When his feet are just about to leave the ground his centre of mass is h2 from the ground and finally rises to h3 when he is at the top of the jump.
(a) What is the upward force exerted by the ground on him treating it as a constant?
(b) Find work done by normal reaction from ground.
A weather vane originally at rest has a moment of inertia of 0.107 kg · m2 about its axis of rotation. A 28.5 g piece of clay is thrown at the vane and sticks to it at a point 23.0 cm from the axis. The initial velocity of the clay is 18.0 m/s, direc..
The heating element of a simple heater consists of a 2.0--long, 0.70--diameter nichrome wire. The heating element of a simple heater consists of a 2.0--long, 0.70--diameter nichrome wire.
Block 1, of mass m_1 = 0.500 kg, is connected over an ideal (massless and frictionless) pulley to block 2, of mass m_2. Suppose that the blocks accelerate with an acceleration of magnitude a = 0.550 m/s^2 and that coefficient of kinetic friction b..
Describe the arrangment of circuit elements that is called a voltage divider and the relationship among the various potential differences for that arrangement.
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 56.5° above the horizontal. By how much does the rocket clear the top of the wall
A Chevrolet Corvette convertible can brake to a stop from a speed of 60.0 mi/h in a distance of 123 ft on a level roadway. What is its stopping distance on a roadway sloping downward at an angle of 29.0°
A student applies a 20.-newton force to move a crate at a constant speed of 4.0 meters per second across a rough floor
A spring with a string constant of 23 N/m is stretched from equilibrium to 2.9 meter. Evaluate how much work is done in the process
Calculate the expectation values , , and for the ground state, | 0 >, and the first excited state, | 1 >, of the harmonic oscillator.
A nurse counts 60 heartbeats in one minute. What are the period and frequency of the heart's oscillations
Calculate Magnitudes Of Direction Components Of Velocity
A charged particle with charge +5.0 ?C is initially at rest. It is accelerated through a potential difference of 500 V. What is the kinetic energy of this charged particle
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