In any food chain or web, the original source of energy is

What investigations allow for the control of variables

Eight identical spherical raindrops are charged such that each is at a potential V, relative to the potential infinitely far away.

A combustion reaction occurs when a substance reacts quickly with

Assuming the dread pirate roberts never misses, how far from the end of the cannon is the ship that you are trying to hit (neglect dimensions of cannon) ? answer in units of m.

How can 2 objects have different momentun but same mass

A 5.0 kg object moving at 5.0 m/s. KE = mv2 times 1/2

Before designing the filter, one must understand the relationship between the output voltage of the circuit and the frequency. For a series RLC circuit, how do the impedances of the circuit elements depend on the frequency? a.

A ball rolls down an incline and off a horizontal ramp. Ignoring air resistance, what force or forces act on the ball as it moves through the air just after leaving the horizontal ramp? a). The weight of the ball acting vertically down.

How many atoms are in a sample of 1.83 moles of potassium (K) atoms? A) 3.04 * 10-24 atoms K B) 3.29 * 1023 atoms K C) 1.10 * 1024 atoms K D) 6.02 * 1023 atoms K

If a single mutation turns off the growth of some pairs of legs within an organism, what's most likely affected? a. A substituted gene b. A deleted gene c. A duplicated gene d. A Hox gene