# Mo

### Physics #9 The arm of a crane at a construction site is 14.0 m long, and it makes an angle of 40° with the horizontal. Assume that the maxi?

The arm of a crane at a construction site is 14.0 m long, and it makes an angle of 40° with the horizontal. Assume that the maximum load the crane can handle is limited by the amount of torque the load produces at the base of the arm.

(a) What is the magnitude of the maximum torque the crane can withstand if the maximum load the crane can handle is 460 N?

(b) What is the maximum load for this crane at an angle of 35° with the horizontal?

1 AnswerEngineering11 months ago### Physics #6 The efficiency of a pulley system is 55 percent. The pulleys are used to raise a mass of 81 kg to a height of 4.6 m. What force ?

The efficiency of a pulley system is 55 percent. The pulleys are used to raise a mass of 81 kg to a height of 4.6 m. What force is exerted on the rope of the pulley system if the rope is pulled for 18 m in order to raise the mass to the required height?

1 AnswerPhysics11 months ago### Physics #5 If the torque required to loosen a nut that holds a wheel on a car has a magnitude of 69 N·m, what force must be exerted a?

If the torque required to loosen a nut that holds a wheel on a car has a magnitude of 69 N·m, what force must be exerted at the end of a 0.47 m lug wrench to loosen the nut when the angle is 33°?

I am not really sure on how to get the answer, I currently have: 123.11

1 AnswerPhysics11 months ago### Physics #4?

At Alpha Centauri's surface, the gravitational force between Alpha Centauri and a 8 kg mass of hot gas has a magnitude of 2472.8 N. Assuming that Alpha Centauri is spherical, with a uniform mass of 2.178e+30 kg, what is Alpha Centauri's mean radius?

2 AnswersPhysics11 months ago### Physics question?

The gravitational force of attraction between two students sitting at their desks in physics class is 1.92 ✕ 10-8 N. If one student has a mass of 45.8 kg and the other student has a mass of 62.2 kg, how far apart are the students sitting?

3 AnswersPhysics11 months ago