A student uses 7500 joules of work to climb the stairs in 20 seconds. How much power was she using?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?