Physics, 23.03.2021 22:40, ben2005

I’LL MARK YOU BRAINIEST IF U ANSWER PLEASE 1. suppose the government passed a law saying, 'everyone must use an electric toothbrush ." use the four criteria to assess this change in the system of brushing your teeth

2. what are two methods of support used to keep a system operating safely and efficiently

3. A police system lifts a 500-N Weight A distance of 1.5m. Marina pulls the rope A distance of 9.0m, exerting a Force of 100 N.

a) what is the mechanical advantage of this pulley system

b) What input did marina do on the road

c) what useful output did the rope do on the weight

d) what is the efficiency of the pulley system

THIS IS GRADE 8 PHYSICS PLEASE ANSWER

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 01:00, raweber

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Answers: 1

continue

Physics, 22.06.2019 03:30, natu2072

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Answers: 1

continue

Physics, 22.06.2019 07:20, coolusername1314

The softest and hardest minerals are: softest hardest

Answers: 1

continue

Physics, 22.06.2019 07:30, luckylady

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20

Answers: 1

continue

Do you know the correct answer?

I’LL MARK YOU BRAINIEST IF U ANSWER PLEASE 1. suppose the government passed a law saying, 'everyone...