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Before jumping off the platform, the bungee jumper has 2. 5 x 10^4 J of gravitational potential energy relative to the river below. Assume the jumper's mass is 59 kg. How high is the platform above the river?
The actual diameter of an atom is about a tenth of a nanometer (10-10 m). In order to develop some intuition for the molecular scale of a gas, Calculate the number of molecules in the sample of gas
Suppose we have a rod of length L that has one end at (0,0) and lies along the x-axis and has a uniformly distributed charge -Q. Use calculus to determine the electric potential at point (L+a,0)
A 2000kg car accelerates from 20 to 60km/h on an uphill road. Determine the work done by the engine
A rock is tossed straight up with a speed of 29 m/s. How long is the rock in the air, from the instant it is released until it hits the bottom of the hole
A father racing his son has 1/2 the kinetic energy of the son, who has 1/3 the mass of the father, What are the original speeds of (b) the son
How much force acts on each of her feet while she is coming to a stop? Express this force as a multiple of her weight.
An object is placed 8cm in front of a converging lens with a focal length of 18cm. What is the lateral magnification
(a) The displacement of a particle (in meter) is given by d= (20+3t^3)(i)+(4t^2-t-15)(j).What is its distance (use polar format) from the origion at t =2.00s.
An antique brass bucket contains 0.290kg of water at 20 degrees C. In order to cool the water to 0.00 degrees C and freeze it, how much heat must be removed from the water
Two bicycle tires are set rolling with the same initial speed of 3.40 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. Find the coefficient of rolling friction for the tire under low pr..
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A tow truck pulls a car 5.2 km along a horizontal roadway using a cable having a tension of 790.
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