How can simple machines make work easier? A) By decreasing the effort needed to do the work

B) By adding more work on the object

C) By increasing the friction between the machine and the object

D) By removing the force of gravity on the object

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Compare and contrast solutions and suspensions

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?