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A car of mass m= 1,807 kilogram is driving with constant speed v= 42.2 meter per second on a circular track of radius R = 26.7 meter. Obtain the magnitude of the acceleration of the car in m/s2?
When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal sta..
a uniformly charged sphere has a potential on its surface of 450 v. at a radial distance of 9.2 m from this surface the
A railroad car with a mass of 20,000 kg rolls into a second stationary car with a mass of 40,000 kg. How fast was the first car moving before the collision
What is the greatest mass that can be accelerated upwards at 2.9 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, that is 2.2 108 Pa.
A string is attached to a rigid support and the cylinder allowed to drop from rest. Find out the acceleration of the cylinder.
While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 295 m east, 195 m at an angle 30.0° north of east, Find the resultant displacement from the cave entrance
A rock is thrown directly upward from the edge of the roof of a building that is 32.5 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistan..
a pipeline conveying freshwater to a city has an internal diameter of 1.2m and external diameter of 1.25m. the pipeline
A 0.61-mm-diameter copper wire carries a tiny current of 2.6A. The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m3. NA=6.02×1023. Estimate the electron drift velocity. Suppose one free electron per atom. Express your answer to two i..
A uniform 2.95- kg spinning disk with a radius of 0.243 m is brought to rest by a brake-pad pressed against the side 0.165 m from the rotation axis. What frictional force was applied by the brake pad
The Lunar Lander of mass 1.9Ã?104kg made the last 150m of its trip to the Moon's surface in 120s, determine the upword force required to decend at a constant speed
The front and rear sprockets on a bicycle have radii of 9.50 and 5.38 cm, respectively. Calculate the linear speed (in cm/s) of the chain
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