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Q. tom the cat (10kg) is chasing Jerry the mouse across a table surface 2.0m above the floor. Jerry steps out of the way at the last moment, and Tom starts sliding at a speed of 3.0m/s. The coefficient of friction between Tom and the table is 0.25, and he slides 0.5m before reaching the edge.
a)calculate the force of kinetic energy acting on Tom
b)calculate the speed at which Tom leaves the edge of the table
c)calculate the distance from the edge of the table where Tom hits the floor
A 710 kg car stopped at an intersection is rear-ended by a 1800 kgtruck moving with a speed of 16 m/s. If the car was in neutral andits brakes were off, so that the collision is estimated elasticfind the final speed of the truck. Find the final sp..
calculate the total mechanical energy of the glider at any point in its motion. Calculate the maximum speed of glider.
A sailor strikes the side of his ship just below the surface of the sea. He hears echo of the wave reflected from the ocean floor directly below 9 s later. How deep is the ocean at this point.
How many wavelengths are there in one pulse
A tennis racket has nylon strings. If one of the strings with a diameter of 1 mm is under the tension of 15 N, how much is it lengthened from its original lenght of 40 cm.
A student walks 24 m from her math class and then turns 90° and walks 10 m to her locker, that is directly north of her class. What is her total displacement.
Runner A is at first 6.60 km west of a flagpole and is running with a constant velocity of 6.4 km/h due east. Runner B is firstly 7.20 km east of the flagpole and is running with a constant velocity of 8.80 km/h due west.
what is the minimum coefficient of static friction required between tires and race track if the car is to stay on the track at a speed of 130m/s.
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
Distance between focal plane and lens
Coherent light with wavelength 591 passes by two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central bright f..
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
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