Aman pushes a 10kg box with a constant acceleration of 5m/s2. what force is applied to the box?

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?

What is friction? how does it affect the motion of an object?

The energy produced as a result of this flow of electrons from atom to atom is called