Nuclear fission can be described as a chain reaction.

a. True

b. False

What force is necessary to accelerate a 1250 kg car at a rate of 40 m/s^2?

How many people does it take to build a rocket ship

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

Similarities in tennis and volleyball

Which of these will reflect light with the highest frequency? O O O O an orange basketball a blue candle a green ribbon a yellow banana

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? A) 2.5 grams B) 5.0 grams C) 10.0 grams D) 40.

What are the SI units of measure for length, mass, and liquid volumes?

The saclike structure that surrounds the glomerulus is the. a. renal pelvis b. calyx c. bowman's capsule d. cortex e. none of the above

A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.

Why do people use Earth's motions to determine units of time?