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4 years ago

11

Which question cannot be answered through making measurements?

1 answer:

Margarita [4]4 years ago

8 0

Answer: it would be A

Explanation: how are we to measure the air of a square mile

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3 years ago

Question 11 of 15<br> what has an atomic number of 1?

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3 years ago

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Which of these would you include ina free body diagram for a bicycle-plus-rider taken together as the bicycle is being pedaled u

Sindrei [870]

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3 years ago

1 Find the acceleration of an object if there is a force of 20 newtons in one direction and 10 newtons in the opposite direction

Zielflug [23.3K]

Answer:

5m/s/s

Explanation:

10N bc you subtract 10N from 20N and you get 10

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3 years ago

A runner is moving at a constant speed of 8.00 m/s around a circular track. If the distance from the runner to the center of the

Genrish500 [490]

Answer: Last option

2.27 m/s2

Explanation:

As the runner is running at a constant speed then the only acceleration present in the movement is the centripetal acceleration.

If we call a_c to the centripetal acceleration then, by definition

$a_c =w^2r = \frac{v^2}{r}$

in this case we know the speed of the runner

$v =8.00\ m/s$

The radius "r" will be the distance from the runner to the center of the track

$r = 28.2\ m$

$a_c = \frac{8^2}{28.2}\ m/s^2$

$a_c = 2.27\ m/s^2$

The answer is the last option

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4 years ago