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A 110 kg football line defender runs to the right at 2.75 m / s, while another 125 kg line defender runs directly to the first at 2.60 m / s. What are the magnitude and direction of the net momentum of these two athletes, and their total kinetic energy?
in a interference experiment d 4mm l 1m the second maximum n 2 appears on the screen at a distance 4mm from the
The position vector of a particle of mass 1.80 kg as a function of time is given by r = (6.00i + 4.60t j ), where r is in meters and t is in seconds. Determine the angular momentum of the particle about the origin as a function of time. Answer should..
A gas at temperature T0 and atmospheric pressure fills a cylinder. The gas is transferred to a new cylinder with two times the volume, Determine the new temperature of the gas
At t = 4.00 s, a point on the rim of a 0.300 m radius wheel has a tangential speed of 60.0 m/s as the wheel slows down with a tangential acceleration of constan
A Geosync TV satellite of mass 2000 kg is in a circular orbit around the earth, making one revolution or orbit every 24 hrs, What is the magnitude of the centripetal acceleration
An 70 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. The push force has a horizontal component of 20 and a vertical component of 25 downward. Calculate the coefficient of k..
Consider same situation, but this time the external force F is 23.9 N. Again state the force of friction acting on the block at t=0 and t>0
When four people with a combinedmass of 340kg sit down in a car, they findthat the car drops 0.50cm lower on its springs, What is the frequency of the car's vibration if its mass (when it is empty) is 2.0 x 103 kg
A sphere consists of a solid wooden ball of uniform density 800 and radius 0.20 and is covered with a thin coating of lead foil with area density 20.
At a distance of 0.214cm from the axis of a very long charged conducting cylinder with radius 0.100cm, the electric field is 485N/C. What is the electric field 0.580cm from the axis of the cylinder
A merry go round at a children's playground can be approximated as a uniform circular disc with a diameter of 3.72 m and a mass of 288 kg. A constant force of 178 N is applied perpendicular to the outer edge of the merrygoround. How long does it t..
A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Find the translational speed at the top
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