A body of mass 0.5kg is accelerated from rest and travels a distance of 40m in 2.5s. Determine,
i. The acceleration of the body.
ii. The net force applied on the body.
iii. Hence, or otherwise, determine change in momentum of the body

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

By what primary heat transfer mechanism does the sun warm the earth?