Question
what is the answer for question 7 ?
lhe particle will move cle and move a limited region along the x axis. What is the smallest value of x which the particle ever has? parti in Yes, Computer gets 4.40E+00 m Hint: What is the total energy of the particle? Like a roller coaster in a valley, if E tot is not large enough, the coaster can't make it over the hills on either side. The coaster will oscillate back and forth between xmin and an xmax. A proposed space station consists of a large circular disk with the living quarters on the rim of circular ring, 50.0m in diameter. What speed should the rim of the ring have, so that the occupants feel that they have the same weight as they do on Earth? Answer: Submit All Answers 8. [1pt] Calculate the magnitude of the gravitational force between the earth and a 3A00-kg mass on the surface of the earth, The distance to the center of the earth from the surface is 6370 km and the mass of the earth is 5.98e+24 kg. HINT: This problem should take you about 5 seconds to solve. If you use G to answer this problem, you are not thinking. correct, computer gets 3.34E+01 N Hint: The SI system of units uses meters as the unit of length. You must change the distance from km to m. How does your answer compare with just Mg? 9, [1ptl Calculate the ratio of the magnitude of the gravitational force between a 3.400 kg mass on the surface of the earth due to the sun to that due to the moon. The mass of the sun is 1.99e+30kg and the distance from the center of the sun to the surface of the earth is 1.50e+08km. The distance to the center of the moon from the surface of the earth is 3760000 km and the mass of the
Explanation / Answer
For earth like situation, the acceleration of the occupants should be 9.8 m/s^2.
Thus, use :- a = w2*r where a is the acceleration, r is the radius and w is the angular velocity/speed [omega].
So;
9.8 = 50 x
