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A jogger accelerates from rest to 3.99 m/s in 3.91 s. A car accelerates from 17.6 to 34.2 m/s also in 3.91 s. (a) Discover the magnitude of the acceleration of the jogger. (b) Decide the magnitude of the acceleration of the car. (c) How much further does the car travel than the jogger through the 3.91 s?
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. Find the speed of the lighter car just after the collision
A wheel (radius 0.6 m) is rolling on a horizontal surface with a center of mass acceleration of 0.7 m/s2. compute the friction force acting between the wheel and the surface
A rock of mass m = 1.1 kg is tied to a string of length L = 2.5 m and is twirled in a vertical circle, what is the tension when the rock is at the bottom
A 4.38-kN piano is lifted by three workers at a constant speed to an apartment 27.2 m above the street using a pulley system fastened to the roof of the building. find the time required to lift the piano from the street to the apartment
A wave traveling in the +x direction has an amplitude of 0.421 m, Write the equation of the wave
A light wave was reflected off of a mirror at an angle of15°. What was the incident angle
A spring with spring constant 40N/m is attached to the ceiling, and a 5.5-cm-diameter, 1.5kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 25.00 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (1) How much time elapses from start to stop? ..
Two identical point charges are fixed distance from one another. If one of their charges was doubled an the other was halved, how would the electric force be affected.
A photoflash unit makes a very bright light for a very short time, Which is important: the intensity of the light, or the product of the intensity and the time of the flash
A 12 g bullet travelling at 420 m/s is fired into the middle an unlatched 32.0 kg door. The door in hinged on one end, is 1.20 m wide and has I = 1/3 Md2. The bullet hits the middle of the door. What is the angular speed of the door just after the bu..
Suppose you want to make a scale model of a hydrogen atom. For the nucleus you choose a small ball bearing with a radius of 1.7 mm, What would be the radius of the model
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