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In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +3.3 m/s, grabs him. The tackler holds onto the receiver, and the two move off together with a velocity of +2.3 m/s. The mass of the tackler is 120 kg. Assuming that momentum is conserved, find the mass of the receiver.
The coefficient of kinetic friction is 0.400. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
A proton traveling with a velocity of 6.20x10^6 m/s in the positive x direction encounters a uniform 0.25 magnetic field in the positive y direction
1. a street light is supported by two wires and each makes a different angle from each other. the one on the left
Knowing the temperature at the surface of the Earth to be 72 Find the temperature at the surface of Venus
A penny has a mass of 2.50 g, a diameter of 19.55 mm, find the density of the material from which the penny is made
Coherent light with wavelength 546 nm passes through two very narrow slits, and the interference pattern is observed on a screen the distance of 3.00 {rm m} from the slits. The first-order bright fringe is a distance of 4.86 {rm mm} from the center o..
Suppose the superhero had flown 145 m at a 125° angle with respect to the positive x-axis
ball rolls horizontally off the edge of a tabletop that is 1.80 m high. It strikes the floor at a point 1.32 m horizontally away from the table edge. (Neglect air resistance.) (a) How long was the ball in the air? s (b) What was its speed at the i..
A 20kg box slides up a 12m long incline at an angle of 30 degrees with the horizontal. What is the change in gravitational potential energy
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute .
q1. an airplane is flying with a velocity of 60.0 at an angle of 22.0 above the horizontal. when the plane is a
A64-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. How fast is the astronaut moving after he throws the mallet
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