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From the shore of a frozen lake, a QB throws a 2 kg football at a velocity of 20 m/s. A 30 kg person standing on the ice (ice coefficient of friction is 0.02) catches the ball.
Question 1: What is the person's velocity immediately after they catch the football?
Question 2: How far does the person slide before they come to a stop?
A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, Find his velocity just before his feet strike the ground
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach base camp
What is the height of the hill . Find the coefficient of kinetic friction between flight bag and floor.
Calculate the buoyant force of water on a completely submerged sample volume of 3.4 meter^3.
A loudspeaker on a tall pole broadcasts sound waves equally in all directions. If the sound output is 7.0 W, at what distance from loudspeaker is the sound intensity level 85.7 dB.
A 180 g block on a 49 cm-long string swings in a circle on a horizontal, frictionless table at 74 rpm.
The aurora is caused when electrons and protons, moving in the earth's magnetic field of ?5×10?5 T, collide with molecules of the atmosphere, find Radius of the electron and proton in m
What is the magnitude of the force of upper leg on the lower leg at the knee joint.
A silicon sample is doped with phosphorus at 1.23 parts per million. Phosphorus acts as an electron donor, Calculate the number of free electrons per unit volume of the doped silicon.
A student pushes a 60 kg couch across a carpet at a constant velocity. find the magnitude of the force of the student on the couch
Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy (in the range of 1Ã-1012 Watts, What is the maximum value of the electric field in the pulse
A homogeneous disk of radius R and mass M rolls without slipping on a horizontal surface and is attracted to a point a distance d below the plane. find the frequency of oscillations around the position of equilibrium
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