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An automobile has a mass of 1710 kg and a velocity of 23.2 m/s. It makes a rear-end collision with a stationary car whose mass is 2470 kg. The cars lock bumpers and skid off together with the wheels locked.
(a) What is the velocity of the two cars just after the collision?
(b)Find the impulse that acts on the skidding cars from just after the collision until they come to a halt.
(c) If the coefficient of kinetic friction between the wheels of the cars and the pavement is %u03BCk = 0.732, determine how far the cars skid before coming to rest.
An alpha particle (the nucleus of a helium atom formed by 2 protons and 2 neutrons with charge q = +2(1.6 x 10-19 C ) is moving perpendicular to a magnetic field of 0.530 tesla at a velocity of 3.00E+6 m/s, Calculate the acceleration of the alpha p..
A diffraction grating with 330 {rm lines/mm} is 1.00 {rm m} in front of a screen. What is the wavelength of light whose first-order maxima will be 17.0 {rm cm} from the central maximum on the screen.
A U-236 nucleus fissions directly into Xe-138 and Sr-98 without the emission of neutrons. What is the fraction of the total kinetic energy released is carried by the lighter fragment
A long, straight wire runs along the y-axis. The wire carries a current in the positive y-direction that is changing as a function of time according to i = 8 A + (0.2 A/s)t. A loop of wire is placed in the xy-plane near the y-axis. The loop has di..
A 1.0 kohm resistor is connected in series with a 10 mH inductor, a 30 V battery, and an open switch. at time t=0, the switch is suddenly closed. What are the voltage drops Vr and Vl 20.00 us after the switch is closed.
A charge of +2q is fixed to one corner of a square, while a charge of -1q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of square, so the potential is zero at each of the two empty c..
A surfer is zipping northeast across the river with a velocity of 10 m/s relative to the water. what is the true velocity of the surfer
The naturally occurring charge on the ground on a fine day out in the open country is -1.00 nC/m2. Calculate the electric potential at this height
You are rotating a 2.0kg rock in a vertical circle,using a very light string. Find the speeds of the rock at the highest and lowest position
What is linear charge density of the insulating shell
Pendulum A is a physical pendulum made from a thin, rigid, and uniform rod whose length is d.
A miniature 200 g monkey skis 150 m down a 25 degree inline on a 400 g sled. Use energy methods to find the final speed of the monkey
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