Which type of rock is created when lava cools and hardens?

a. metamorphic

b. igneous

c. cement

d. sedimentary

How would the moon appear from earth if the moon did not rotate?

How many times bigger is the earth than the moon?

A potential difference of 12 V is found to produce a current of 0.40 A in a wire. What is the wire's resistance?

the temperature of the core of the sun is about 15,000,000°C use scientific notation to write the temperature of the suns core

Which of the following occurs as a light wave bends when it passes from one medium into another? A. constructive interference B. Refraction C. destructive interference D. reflection

Can an object travel at the speed of light? Why or why not?

Determine the amount of potential energy of a 5 Newton's book that is moved to three different shelves on a bookcase. The height of the shelves is 1.0 meter, 1.5 meter, and 2.0 meter

Which atom is involved in giving your heart energy to beat? carbon gold oxygen iron

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present

Danilo is sliding down a slide. What forces are acting on him as he slides