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Question: A car starts from rest at a stop sign. It accelerates for 4.0 m/s2 for 6.0 s, coasts for 2.0s, and then slows down at a rate of 3.0m/s2 for the next stop sign.
Part A: How far apart are the stop signs?
Having trouble with this physics question, can you please explain with the answer.
Jack and Jill are standing on a crate at rest on the frictionless, horizontal surface of a frozen pond. Jack has a mass of 74.5kg , What is the final speed of the crate if Jill jumps first and then Jack, again in the same direction
A swift blow with the hand can break a pine board. As the hand hits the board, the kinetic energy of the hand is transformed into elastic potential energy of the bending board, what is the average force on the hand
A 2000-kg car moving with a speed of 20 m/s collides with andsticks to a 1500kg car at rest at a stop sign. Show that because momentum is conserved in the rest frame, momentum is also conservedin a reference frame moving with a speed of 10 m/s in the..
A car travels along a level road with a speed of 25m/s. Is the same car is traveling downhill along a road that makes an angle of 12o, find how much does the car's stopping distance increase
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.991c. Determine the particles proper lifetime
Two long, straight wires cross each other at right angles, and each carries same current. Which of the following statements are true regarding the total magnetic field at the various points due to the two wires.
Light of wavelength 650 nm is incident normally upon a glass plate. What is the highest order bright fringe
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. compute the index of refraction for violet light in plastic
A slit of width 0.50 mm is illuminated with light of wavelength 500 nm, Find the widths of the first and second maxima of each side of the central maximum
Consider a 80.0-kg man standing on a spring scale in an elevator
when the cylinder is fully immersed does the buoyant force acting on it depend on how far below the surface of the
A uniform drawbridge must be held at a 41 degree angle above the horizontal to allow ships to pass underneath. Obtain the direction and magnitude of the force the hinge exerts on the bridge
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