How many newtons of force are presented by the following amount: 3 kg *m/sec squared? select the correct answer
a)6 newtons
b)3 newtons
c)1 newton

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?