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A 700 gram streamlined projectile is dropped from a 30 m tall building on earth. Assuming no air resistance, what will the velocity of the object be when it strikes the ground?
a cylinder contains a mixture of helium and argon gas in equilibrium at 170degc.a what is the average kinetic energy
a beam of white light makes an angle of incidence of 38deg with a glass prism of index of refraction of 1.5 and
You hold a 23.5-kg car tire in your hand and, standing in place, rotate the tire in a horizontal circle of radius r = 1.10 m starting from rest. What is the time required to complete three full revolutions
As you bounce a tennis ball of mass 5.30 10-2 kg off a wall, its velocity changes from vx = 10.5 m/s to vx = -7.4 m/s. Find the impulse applied to the ball
q1. a 500 g rubber ball is dropped from a height of 10 m and undergoes a completely elastic collision with the earth.a
Two waves are traveling in the same direction along a stretched string. The waves are 45.0° out of phase. Each wave has an amplitude of 7.00 cm. Find the amplitude of the resultant wave
The wheels, axle, and handles of a wheelbarrow weigh W = 59 N. The load chamber and its contents weigh WL = 691 N. Find the magnitude of the man's force for both designs
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
A slide projector needs to create a 92 cm high image of a 2.0 cm tall slide. The screen is 250 cm from the slide. Assume that it is a thin lens. How far should you place the lens from the slide
What is the electric potential difference between two points that are 3.00 cm and 5.00 cm from a proton
A centrifuge in a medical laboratory rotates at a rotational speed of 3600rev/min. when switched off, it rotates 50.0 times at a constant angular acceleration before coming to rest.
Regarding standards, regulations, and guidelines define and explain mandatory and benchmark practices.
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