As part of a forensics test, a 0.005 kg bullet is fired into a 0.5 kg stationary wooden block. The bullet becomes embedded in the block. The initial speed of the bullet is 370 m/s. 1)What is the initial velocity of the center of mass of the bullet-block system before the collision

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

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?