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Anna35 [415]
3 years ago
15

Doug is doing work. Without knowing exactly what he is doing, which can be said about the work he is doing?

Physics
2 answers:
WARRIOR [948]3 years ago
8 0
<h3>Answer;</h3>

<em>Energy is transferred.</em>

<h3>Explanation;</h3>
  • Work is the force applied over a given distance, in other words work is the product of force and distance. That is; Work = force × distance.
  • Work is measured in Joules.
  • Energy on the other hand, is the ability to do work.
  • According to the principle of work-energy a change in the kinetic energy is equivalent to the net work don e by the object. Therefore, when work is being done energy is being transferred from one point to another.


NeX [460]3 years ago
6 0

A) Energy is transferred

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3 years ago
As the result of a thermal inversion the prevailing air temperature profile increases 1°C/100m above the ground level. To what m
astra-53 [7]

Answer:

909.1 m

Explanation:

Rate of temperature increase with 100 m elevation = 1°C

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Adiabatic lapse rate = -0.65°C/100 m

We have the relation

\dfrac{1^{\circ}C}{100}=\dfrac{15^{\circ}C}{h}+\left(-\frac{0.65}{100}\right)\\\Rightarrow \dfrac{1^{\circ}C}{100}+\left(-\frac{0.65}{100}\right)=\dfrac{15^{\circ}C}{h}\\\Rightarrow h=\dfrac{15^{\circ}C}{1.65^{\circ}C}\times 100\\\Rightarrow h=909.1\ m

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3 years ago
A train travels north at a speed of 50 m/s.
Gala2k [10]

The apparent velocity is B) 48 m/s north

Explanation:

Here we have a problem of relativity of velocities.

In fact, the train is travelling north at a speed of

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At the same time, a passenger on the train is walking towards the rear (so, south) at a velocity of

v'=2 m/s

where this velocity is measured with respect to the train, which is in motion in the opposite direction.

Therefore, the apparent velocity of the passenger with respect to an observer standing on the ground is:

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And the direction is north, since this number is positive.

Learn more about velocity:

brainly.com/question/5248528

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8 0
3 years ago
A 1.2kg ball rolls forward with an acceleration of 1.11 m/s. What is the net force on the ball
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Answer:

1.332 N

Explanation:

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I'm so sorry if I'm wrong.

8 0
1 year ago
In which graph is acceleration the slope?
olga2289 [7]

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Explanation:

hope it helps ✌️✌️

4 0
2 years ago
Read 2 more answers
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