He center of a penny is pushed from the 4.3-cm mark of a ruler to the 19.2-cm mark. What is the displacement of the penny

Elmer learns the following facts about the sky in science class: The sky is blue because of the way the air scatters light from the Sun. The colors at sunset are partly due to the fact that the sun is shining through a much thicker layer of air.

A truck traveled 400 meters north in 80 seconds and then it traveled 300 meters east in 70 seconds. The magnitude of the average velocity of the truck was most nearly?

How are neutron starts formed?

Duncan takes a break from studying and goes to the gym to swim laps. if swimming burns 8.75Ã105 cal per hour, how many kilojoules does swimming burn in that same amount of time? in other words, convert 8.75Ã105 cal to kilojoules.

What are three processes in the body that are fueled by chemical potential energy?

The pressure inside a champagne bottle can be quite high and can launch a cork explosively. Suppose you open a bottle at sea level. The absolute pressure inside a champagne bottle is 6 times atmospheric pressure; the cork has a mass of 7.

Using a cathode ray tube, Thomson confirmed that atoms must have an overall positive charge. atoms are made of particles that have a negative charge. electrons in atoms must have varying amounts of energy. electrons are only found in the nucleus.

A ball is rolled along the inside of a partial hoop lying flat on a table. which path will the ball follow when it gets to the end of the hoop?

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts? a. rock cycle b. calcium cycle c. carbon cycle d. none of the above

Why is the monolith el capitan in yosemite national park more resistant to erosion than other igneous plutons in the park?