What can speed up the rate of a Chemical reaction?

Which has more KE, a large truck moving at 50m/s or a bicycle moving at 10m/s?

A pendulum makes 40 vibrations in 20 seconds. Calculate the period?

If the marble bounces straight upward to a height of 0.64 m, what is the magnitude of the impulse delivered to the marble by the floor?

The ability to do work or cause change is called?

Suppose a car moving in a straight line steadily increases its speed, the first second from 35 to 40 km/hr, the second second from 40 to 45 km/hr, and the third second from 45 to 50 km/hour.

For each case, identify the force (including its direction) that causes the acceleration. (a) A sprinter at the very start of the race.

Select the effects of radiation below that are stochastic: associated with short-term, high-level exposure associated with long-term, low-level exposure include cancer and other DNA mutation include burns and radiation sickness

On the modern periodic table, elements are ordered according to what?

Jack drops a stone from rest off of the top of a bridge that is 24.4 m above the ground. After the stone falls 6.6 m, Jill throws a second stone straight down. Both rocks hit the water at the exact same time.

How is Electric current able to flow?