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A 1200 kg car is moving with a velocity of 20 m/s when the brakes are applied uniformly. The car stops after 10 s. Find the braking force on the car by finding the impulse of the force on the car first? Find the braking force on the car by finding the acceleration of the car?
A space traveller whose mass is 104kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no near planetary objects.
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 , and all of the copper is used. Illustrate what will be the length of the wire?
The block starts at the top of the wedge at 1.2 m. Find out the final speeds of a block and the wedge once the blook has slid to the bottom.
A plate carries a charge of -2.0 microcoulombs while a rod carries a charge of 2.5 microcoulombs. How many electrons should be transferred from the plate to the rod, so that both objects have the equal charge.
Heather and Jerry are standing on a bridge 51 above a river. Heather throws a rock straight down with a speed of 12. Jerry, at accurately the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.
Two frictionless carts are pulled (horizontally to the left) by a force of F1=24N. m1=2.0kg and m2=4.0kg, find the tension in the connecting cord
What is the true potential difference among this resistor when the meter is not present? I thought this was just 25 but it is wrong when I enter in.
A spherical conducting shell has an interior radius of 18 cm and an outer radius of 21cm. The shell carries a net charge of -2.4 micro coulombs. A point charge of charge +6.4 micro coulombs is placed at the center of spherical shell.
Two cylindrical bars, each with diameter of 2.30 cm, are welded together end to end. One of the original bars is copper and is 0.350 m long
what is the magnitude of the net force acting on ball.
If the coefficient of friction between road and tires on a rainy day is 0.120, what is the minimum distance in which the car will stop.
Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional increase in length is to be the similar as that of the spider's thread.
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