Arocket expels gas at a high speed out of its back for a short period of time. we are going to treat the rocket as being far away from any gravitational objects. (a) draw a momentum chart for the rocket expelling gas in space. take the initial time before expelling gas and the final time after the rocket has finished expelling gas. the rocket has an initial constant speed in the horizontal direction. put the rocket and the expelled gas on separate rows. (b) use your chart to explain why the rocket speed increases. (c) does the rocket have to keep expelling gas to stay at a constant speed? explain.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

k2s for potassium sulphide