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Lena [83]
2 years ago
12

A liter is the same as a cubic meter. a. True b. False

Physics
2 answers:
sammy [17]2 years ago
8 0
It is false ...........
Eddi Din [679]2 years ago
3 0

The correct answer is B. False

Explanation:

Liter and cubic meter are two different units mainly used for measuring volume (space occupied by a substance). However, a liter and a cubic meter are equivalent to different amounts of substances. Indeed, one cubic meter is equivalent to 1000 liters, this implies a cubic meter represents a larger volume of a substance than a liter as there are 1000 liters in just one cubic meter. This implies a liter is not the same as a cubic meter as these units measure different volumes.

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5 0
2 years ago
(a) when rebuilding her car's engine, a physics major must exert 300 n of force to insert a dry steel piston into a steel cylind
Vilka [71]
There are some missing data in the text of the problem. I've found them online:
a) coefficient of friction dry steel piston - steel cilinder: 0.3
b) coefficient of friction with oil in between the surfaces: 0.03

Solution:
a) The force F applied by the person (300 N) must be at least equal to the frictional force, given by:
F_f = \mu N
where \mu is the coefficient of friction, while N is the normal force. So we have:
F=\mu N
since we know that F=300 N and \mu=0.3, we can find N, the magnitude of the normal force:
N= \frac{F}{\mu}= \frac{300 N}{0.3}=1000 N

b) The problem is identical to that of the first part; however, this time the coefficienct of friction is \mu=0.03 due to the presence of the oil. Therefore, we have:
N= \frac{F}{\mu}= \frac{300 N}{0.03}=10000 N
8 0
3 years ago
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