A balloon is buoyed up with a force equal to the

A) weight of air it displaces.

B) density of surrounding air.

C) atmospheric pressure.

D) weight of the balloon and contents.

You are on an airplane that is landing. The plane in front of your plane blows a tire. The pilot of your plane is advised to abort the landing, so he pulls up, moving in a semicircular upward-bending path.

What are the two roles of bacteria in the nitrogen cycle?

How did the invention of movable type change society?

A race car is moving with a velocity of 144 km/h the driver applies the brakes and the car comes to a halt in 12 seconds what is the average acceleration of the car during those 12 seconds

List three examples of selectively permeable material or item

Which has the same relationship as circle:cylinder? Triangle:sphere, square:window, rectangle:box, pentagon:counter

Which training principle does this scenario represent?

What is the wavelength of a wave? A. the amount of time that one full cycle takes. B. the distance from the beginning to the end of a cycle. C. the amount of cycles that occur in a given time. D.

Two football players collide on the field. Before the collision, their total momentum was 450 kgm/s to the north. What is their total momentum after the collision? A. More than 450 kgm/s north B. 450 kgm/s north C. Less than 450 kgm/s north D.

Jane and John Doppler effect