Describe what would happen if you rubbed a mineral with a Mohs hardness value of 7 against a mineral with a value of 5?

Use the periodic table to answer the following question. How many valence electrons does magnesium (Mg) have?

Why is acceleration due to gravity low in the space?

A worker pushes horizontally on a large crate with force of 298 N and the crate is moved 4.3 m. How much work was done?

How do you find acceleration in science?

What happened to change people's views and lead them to believe in continental drift?

Why arent insulators allowed in operating rooms

What does Kepler's second law state? A. Planets travel in ellipses. B. Planets sweep equal areas in equal times. C. A planet's apparent backward movement is termed retrograde motion. D.

Why do charges build up in a cloud

How does the wave model of electrons orbiting the nucleus account for discrete energy values?

An ecosystem is all the populations of organisms that live together and A. the microorganisms that depend on them. B. the organisms that generate energy from sunlight. C. the physical factors with which they interact. D.