State a problem. Describe what you want to find out about the relationship of the following factors to the amount of water erosion that occurs on a slope: slope gradient, presence or absence of vegetation, and rain intensity.

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

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?