a plane inclined at an angle of 30°to the horizontal has an efficiency of 60%. the force parallel to the plane required to push a load of 120N uniformly up the plane is?

Explain the consequences of this addiction to the brain tissue

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.