200 N of force is applied to the pedals of a bike has output force of 450 N what is the mechanical advantage of the bike

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?

Ajoint produces movement when its angle decreases. which type of movement is it?