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2 years ago

Jonah rode his skateboard 350 meters down a straight road at a constant velocity. He skated

Physics

1 answer:

Marysya12 [62]2 years ago

8 1

Answer:

250 m/min down the road

Explanation:

Velocity is equivalent to speed but it considers the direction of the object. Velocity is also calculated by dividing the distance travelled by time. Therefore, $v=\frac {d}{t}$ where d and t are distance and time respectively. Given that d is given as 350 m and t is 1.4 s then by substitution $v=\frac {350}{1.4}=250 m/min$ and the direction is down the road.

Velocity is 250 m/min down the road

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Answer:

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3 years ago

What is the mass of a crate if a net force of 12 N gives the crate an acceleration of 0.20 m/s2?

Veseljchak [2.6K]

A :-) for this question , we should apply
F = ma
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2 years ago

There is a refrigerator running in a room, the heat flowing into the refrigerator from the outside is 40 J/s, and the refrigerat

Mamont248 [21]

Answer:

(A) 140 j/sec (b) 1.26 K

Explanation:

We have given the heat heat flowing into the refrigerator = 40 J/sec

Work done = 40 W

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8 0

2 years ago

If you were designing a room in a house, where would be the better place to put a heater, near the floor or near the ceiling? Wh

taurus [48]

Answer: The correct explanation is 2.

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On the other hand, if you put the heater at the ceiling, it will warm the cold air near the ceiling which would stay up there (it is lighter than the cold air under it). This means that the only way for the heat to spread from this ceiling level warm air to the lower levels is via conduction which is slow.

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2 years ago