What is the term used to describe the energy needed to get a reaction started

Which of the following demonstrates a compression? a. plucking a guitar string b. pulling a wagon c. squeezing a sponge d. dropping an apple

What effect did the internal combustion engine have on transportation?

Bacteria that can grow in your breathing area is?

Consider the four spheres. As illustrated by the diagram, we would expect spheres A - C to be attracted to sphere D. Sphere D has the greatest gravitational force because as represented here, it

How do nerves tie the other parts of the nervous system together?

In the Copper Plating Solution lab, you placed copper (Cu) pennies in vinegar. Vinegar is a weak acid with hydrogen ions (H+). When you put the pennies in the vinegar, you should have observed small gas bubbles.

Gravity decreases with distance. Which statement is also true? Orbital speed increases with distance. Orbital speed decreases with distance. Orbital speed remains constant with distance. Orbital speed varies based on the functions of friction.

Suppose the time taken for light to bounce to and fro between the parallel mirrors of a light clock is 1 second, in the frame of reference of the light clock.

Why does the modern model use an electron cloud?

The engineering quadrangle is approximately 235 meters above sea level. If the temperature is 15 degrees Celsius, is that above, below, or equal to the standard temperature for this altitude?