13) When a mass is in static equilibrium this means? A)That v 0 and 0-0. B) That

Question

13) When a mass is in static equilibrium this means? A)That v 0 and 0-0. B) That a 0 and " 0. C) That all v, a, e, and are equal to zero. D) Nothing is equal to zero. 14) Two masses attract with the gravitational force of 1.00x10* N when separated by 20.0 cm. I the sum of the two masses is 5.00 kg, what is the mass of each one? 15) What would the angle between the applied force and the lever arm have to be if the applied force is 95.0 N and the lever arm is 0.550 m and the resulting torque is 15.3 N·m? 16) A torque of 22.0 N m is applied to a solid, uniform disk with a radius of 0.650 m. If the disk accelerates at 7.55 rad/s2, what is the mass of the disk? 17) A meter stick is balanced on a fulcrum at its center. A 5.0 kg mass is hanging from the meter stick at the 10 cm mark. Another mass is hanging at the 70 cm mark. What is the second mass? 18) TRUE or FALSE If a spinning object has an angular velocity directed out of the page and an angular acceleration directed into the page, it must be slowing dowrn. 19) TRUE or FALSE mass If two objects have the same moment of inertia, they must have the same

Explanation / Answer

4) F = G m M/ r2

10-8 = 6.67 x 10-11 x m x M / 0.22

M x m = 6 ........... (1)

M + m = 5 ............ (2)

M x (5 - M) = 6

=> 5M - M2 = 6

=> M2 - 5M + 6 = 0

=> M = 3 and 2

According to Chegg guidelines I can answer one question at a time, so please post other questions separately...

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