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During a golf drive, the angular velocity of the driver is 20 rad/s just before impact with the golf ball. If the distance from the club head to the axis of rotation is 2.0 m, what is the linear velocity of the club head?
According to the equipartition theorem , the average energy of any degree of freedom is 1/2 kT, Estimate the root mean square speed of a helium atom at 15 degrees celcius
A 29 g rifle bullet travelling 270 m/s buries itself in a 3.50 kg pendulum hanging on a 2.6 m long string, which makes pendulum swing upward in an arc. Find out the horizontal component of the pendulum's displacement.
A clean and dry core sample weighing 425 g was 100% saturated with a 1.07 specific gravity brine, Calculate the porosity of the rock sample
A 238 g particle is released from rest at point A inside a smooth hemispherical bowl of radius 32.5 cm.compute the gravitational potential energy at A relative to B.
Assume too that the bullets rebound straight back with no change in speed. What is the magnitude of the average force on Superman's chest from stream of bullets.
Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together.
A projectile is shot from the edge of a cliff 140 m above ground level with an initial speed of 100 m/s at an angle of 37 degrees with the horizontal. Find out the time taken by the projectile to hit point at ground level.
To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 340 m/s at 47.0° above the horizontal, What are the x and y coordinates of the shell
Megan's mass is 27 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 m/s at the bottom of the slide. How much work was completed by friction on Megan? Imagine that air resistance is negligible.
A Volleyball is spiked so that it has an initial velocity of 15 m/s directed downward at an angle of 55 degrees below the horizontal. Find the horizontal component of the ball’s velocity when the opposing player fields the ball?
What is the period of oscillation of the scale? State your reply numerically in seconds.
A mass of 50 kg hangs from a cable that, in turn, is tied to two other cables, What are the tensions in the two upper cables, TL and TR
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