The block with dimensions of 4 cm by 7 cm by 3 cm has a mass of 105g. What is the volume of the block?
O 1.25 g/cm
0 21.0 g/cm
0 7.50 g/cm3
O 84 cm3

Note-taking is important because they may be referred to again before a trial—sometimes months or years after the initial investigation. true false

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b.they can have a lower impact on the environment. c.they can be used up rapidly. d.they can contribute to global warming.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b