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If two objects of different mass have the same non-zero momentum,A.the one with less mass will have the greater kinetic energy.B.the one with more mass will have the greater kinetic energy.C.they will have the same kinetic energy.D.the one with the higher speed will have the greater mass.E.the one with the lower speed will have the greater kinetic energy.
A car traveling at 60 km/hr passes a truck going 30 km/hr that has four times the mass of the car. Which of the following is true?A.The car and the truck have the same momentum and the same kinetic energy.B.The car has the same momentum and twice as much kinetic energy as the truck.C.The car has the same momentum and four times as much kinetic energy as the truck.D.The car has the same kinetic energy and twice as much momentum as the truck.E.The car has the same kinetic energy and half as much momentum as the truck.
A car traveling 50.7 km/h is 21.9 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.03 slater. (a) What is the car's constantdeceleration magnitude before impact? (b) How fast is the cartraveling at impact?
How much is the spring compacted
A car is rounding a curve with a radius of 12.0 m at 8.2m/s when it hits a slippery patch. What is the minimum coefficientof static friction between the car and the slick patch of road that will allow the car to round the corner safely?
A simple generator id designed to operate in the outback of Australia. The square armature consists of windings that are 36.0cm long on each side and the armature rotates in a magnetic field of 0.42 T at rate of 2300 revolutions per minute.
There are two mechanisms of heat transfer considered in these calculations, discuss what part, if any, heat transfer through radiation plays in each of the scenarios considered above.
A moon worm is orbiting an asteroid in a circular path with radius r and speed v. If the moon worm decides to double its speed, how will it have to change the radius of its path so that it continues to orbit the asteroid in a perfect circle?
Describe a certain kind of idealised oscillation - Why then do physicists make such a big deal out of studying SHM?
Find the potential difference required to accelerate protons fromrest to 10% of the speed of light (in MV). (At this point,relativistic effects start to become significant.)
A high-voltage transmission line with a resistance of 0.29 /km carries a current of 1030 A. The line is at a potential of 690 kV at the power station and carries the current to a city located 162 km from the station.
Oily n =1.38 finger.prints on a glass plate n = 1.52 preferentially reflect light with a frequency of 550 mm. What is the thickness of the finger print
question a mirror produces a 10 cm high image of an object that is only 4cm high. if the image is also real and
a cart starts from rest at the top of the tilted track. assume the track is frictionless. the cart passes photogate a
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