Suppose that you have a certain spring to which you add weights. The spring does not stretch until you add 10 N, but it then stretch 10 cm for every 100 grams that you add. What is the equilibrium weight W0 of this scale, in newtons? The equilibrium weight of this spring is N.

Which statement correctly describes the relationship between frequency and wavelength?

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

What is a subatomic particle with a negative charge and very little mass?