Two nearby stellar masses exert a gravitational force F on one another. After a period of time has passed, the first mass has tripled while the second has maintained its original value. The
distance between the masses has also doubled. In terms of F, what is the new gravitational force
between the stellar masses?

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.