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Solve the all parts of given question:
Question: A driver in a moving car applies the brakes. The car slows to a final speed of 2.60 m/s over a distance of 40.0 m and a time interval of 8.45 s. The acceleration while braking is approximately constant.
Part A: What is the car's original speed before braking?
Part B: What is its acceleration during this time? (The car's initial velocity is in the positive direction. Indicate the direction with the sign of your answer.)
Show all work, use additional paper if necessary.
A vertical ideal spring is mounted on the floor and has a spring constant of 124 N/m. A 0.50-kg block is placed on the spring in two dissimilar ways.
A 1.65 kg mass is placed on the end of a spring that has a spring constant of 195 n/m. Determine the change in elastic potential energy of the system
A superball of mass M and a marble of mass m are dropped from a height h with the marble just on top of the superball. A superball has a coefficient of restitution of nearly 1 (i.e., its collision is fundamentally elastic).
In a tape recorder, the magnetic tape moves at a constant linear speed of 5.6 cm/s. What is the angular speed of the take-up spool when it is empty, with radius r1 = 0.64 cm
Two cylindrical bars, each with diameter of 2.00 cm, are welded together end-to-end. One of the original bars is copper (resistivity 1.72e-8 ohm*m) and is 0.320 m long. The other bar is nichrome (resistivity 100.00e-8 ohm*m) and is 0.125 m long. What..
Water is moving at a velocity of 1.50 m/s through a hose with an internal diameter of 1.60 cm. What is the flow rate in liters per second
A molecule absorbs a 2.5 eV photon and transitions from the n=0, l=0 state to the n=1, l=0 state. What is its classical frequency
A circular loop carrying a current of 1.0A is oriented in a magnetic field of 0.35 T. What is the torque on the loop when its plane is oriented at a 25 degree angle to the field
A horizontal 799-N merry-go-round is a solid disk of radius 1.45 m, started from rest by a constant horizontal force of 49.9 N applied tangentially to the edge of the disk
A suitcase full of platinum sits at thebottom of a lake. A recovery diver finds that as he lifts thesuitcase to the surface, What is the volume of the large suitcase
A top loading washing machine has a spin cycle that rorates at frequency f. The spinning drum that holds the clothes has a radius R, Find an expression for the magnitude of the wall's normal force acting on the piece of clothing as the drum spins
A concave mirror has a focal length of 52 cm. The image formed by this mirror is in front of the mirror and located 106 cm away from it. What is the object distance
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