Two boys (same height) are standing on a bridge each boy throws a rock straight down into the river below. they throw the rock at the same time, but one rock hits the water before the other one. how is this possible? g

The moon appears to rise in the ___ and set in the ___ each day because the Earth rotates ___. Answers for the first 2 blanks: North, East, South, West Answers for the 3rd blank: Forward, Backward, Counterclockwise, Clockwise

It takes 105 j of work to move 2.7 c of charge from the negative plate to the positive plate of a parallel plate capacitor. what voltage difference exists between the plates?

A negative acceleration means that the speed of the object decreases. Explain why this statement can be incorrect?

Why is it important that all scientists use the metric system?.

Consider a small but known volume of metal that has a large thermal conductivity. (a) Since the thermal conductivity is large, spatial temperature gradients that develop within the metal in response to mild heating are small.

An automobile steering wheel is shown. The ideal mechanical advantage of this wheel and axle is. If a driver must exert a force of 2 N to overcome an axle resistance of 16 N, the AMA of the steering wheel is and its efficiency is__ %.?

How does the law of conservation of energy apply to machines? -Machines create energy from scratch. -Machines consume energy until no energy remains. -Energy transferred to a machine equals energy transferred from it.

As you turn up the volume on your mp3 player you are increasing

Which event would lead to an overpopulation of a species within a food web A. The grass was eaten by the rabbits stopped growing B. The population of wolves who ate the rabbits decreased C. The grasshopper were affected by the diseased grass D.

Which of the following is true A) land heats less rapidly than water B) land heats more rapidly than water C) land reaches higher temperatures than water D) both b and c