Which of the following demonstrates a compression?

a. plucking a guitar string

b. pulling a wagon

c. squeezing a sponge

d. dropping an apple

What is the mass of an object weighing 63N on earth

A 6-ft-long fishing rod AB is securely anchored in the sand of a beach. After a fish takes the bait, the resulting force in the line is 8.6 lb. Determine the moment about A of the force exerted by the line at B.

A car accelerates from a standstill to 60 km/h in 10 s. What is the cars acceleration?

describe the properties of gases

21. Which of the equations is balanced? A) 2Li2O + H2O ⇒ 2LiOH B) 3Fe + 3O2 ⇒ 2Fe2O3 C) 2N2 + O2 ⇒ 3N2O D) 3Mg + N2 ⇒ Mg3N2

Which sentence contains italicized words that are used as an infinitive phrase? A. Kelly went to the grocery store. B. Tom went there for some flour. C. Mark wanted to go, but not today. D. Jane parked her car behind a truck.

The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which is at a lower potential to the cloud which is at a higher potential.

A vitamin called folic acid is very important for neural tube development, which is the development of the baby's

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?