Which of these rocks are formed by volcanic activity? select the two correct answers. a. limestone b. granite c. marble d. basalt e. sandstone

Which isotope is use to date ancient artifacts such as fossils?

How does a plane and parachute manipulate air resistance differently?

Mary spins a ball in a horizontal circle on a massless string. Karen has a similar ball but wants to spin hers faster. What could Karen do to make it easier to start spinning the mass from rest? A. Spin the ball on the moon B. Use a lighter ball C.

What is a sentence for absolute strength?

A 6.3 kg bowling ball and 7.9 kg bowling ball rest on a rack 0.75 m apart. part a what is the force of gravity pulling each ball toward the other?

Jill can use a force of 12N to lift a single box up 5m. How many of these boxes must she lift in a minute to use 60 watts of power?

What is s the best description of the constructive interference of light? A. two waves have the same direction of displacement. B. two waves have displacement in opposite directions. C. a longitudinal wave meets a transverse light wave D.

True or false Cool air is less dense than warm air.

What diameter is the sun by the scale used? a0 mm

Which of the following describes subatomic particles? carbon and nitrogen solids, liquids, gases larger than atoms protons, neutrons, and electrons