Physics, 23.03.2021 23:20 melaniaviles
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
PLEASE ANSWER AT LEAST 1
Answers: 2
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I’LL MARK YOU BRAINIEST IF U ANSWER PLEASE
1. suppose the government passed a law saying, 'everyone...
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