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A 700 N man stands in the middle of a frozen pond of radius 5.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore at a speed of 5.0 m/s. How long does it take him to reach the south shore?
Write a nuclear reaction for the neutron-induced fission of U-235 to produce Te-137 and Zr-87 How many neutrons are produced in the reaction
gas at constant t and p is contained in a supply line connected through a valve to aclosed tank containing the same gas
This is because of the average release of about 0.03 J per kilogram each year. Show that at 500 C increase in temperature for a thermally insulated chunk of granite takes about 13.3 million years. (Assume that the specific heat of capacity c of g..
A 2kg concrete block, that has a temperature of 20 degreesCelsius, is dropped from a height of 100 meters. What is the block's temperature after it was raised
A 0.366-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 20.3 N/m. How far does the putty-block system compress the spring
The space shuttle needs to slow down in order to return from its orbit. It does so by reversing direction and firing its 3 main engines for a short amount of time. The mass of the space shuttle is 2.0 x 106 kg and has an orbital speed of 8000 m/s. Th..
define the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.
A sanding disk with rotational inertia 2.0 multiply.gif 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of 8 N·m about the central axis of the disk. compute the angular momentum of the disk
A rod of length L carries a uniform linear charge density of 5 nC/m. find the electric field due to this rod at a distance of 20cm
a large hot pizza 80 cm in diameter and 2.0 cm thick with a temperature of 120degc floats in outer space. assume its
A 5 kg uniform cylinder is released at the top of a 1.51 m 21° incline. What is its velocity when it reaches the bottom
sarah weighs 569.8 n on the earths surface. on the surface of planet x which has 4 times the mass of earth sarah
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