To break a chemical bond, particles need to collide with a certain amount of a]energy. b]atoms. c]molecules. d]chemicals.

If you increase the height from which a water droplet falls, will this change the pattern of the ripples produced?

25. Why would you not cork (stopper) a chemical in a test tube that you are heating?

a car travelled 60 km west in 1.33 h along straigt line, then returned back east for 40 km in 0.67 h. its average velocity

There are 1.6 km in a mile. the distance between two cities is 248 miles. how many kilometers are the two cities

Which theory of the origin of the moon would be most supported if the moon had an irregular shape, like an asteroid? impact theory co-formation theory capture theory synchronous theory

What direction do s waves move in

A car has an initial velocity of 11.2 m / sec. the car accelerates at 10.0 m / s2 for 8.0 seconds. what is the velocity of the car at the end of the 8.0 seconds?

You're going to open the door further by giving it a brief, hard push. first, you'll push the door at its center. then, you'll push it near the door knob. both pushes are equally hard, and last the same length of time.

In which phenomenon does Earth's magnetic field play an important part? A retaining gases around Earth to form the atmosphere B. stratifying the atmosphere into layers c. movements of tectonic plates D. spreading of the sea floor E.

Make sure that you spend extra time warming up during - O O A. spring B. cold weather O c. the afternoon O D. a heat wave