The core, mantle, and crust of a planet are defined by differences in their

Some of the minerals found in rocks dissolve in water as it flows over the rocks. would these minerals dissolve more quickly a. at the bottom of a waterfall or in a still pond? why? b.

How did school segregation in the United States cause African American students to feel? A. excluded, which increased their level of motivation in school B. rejected, which enhanced their educational and mental development C.

Calculate the energy needed to change 10 grams of water from 70°C to 110°C.

Why is a single system measurements necessary throughout the scientific community

Forces always act alone. true or false

Why is the sky blue all the time

Where did the rotational kinetic energy of the earth come from?

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?