Acertain man has a mass of 83.0 kg and a density of 996 kg/m3 (excluding the air in his lungs). (a) calculate his volume (in m3). m3 (b) find the buoyant force (in n) air exerts on him. n (c) what is the ratio of the buoyant force to his weight

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?