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Ronch [10]
3 years ago
12

The value of acceleration due to gravity varies from place to place on the surface of the earth​

Physics
2 answers:
scoray [572]3 years ago
8 0

Answer:

approximately 9.83 metres per second

Explanation:

Happy to Help

Kay [80]3 years ago
3 0

Answer:

True....................

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Svet_ta [14]

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6 0
3 years ago
If two bicycles of same masses move at different velocities,it will be easier to stop the bicycle that is moving at lower veloci
s344n2d4d5 [400]

Answer:

It is easier to stop the bicycle moving at a lower velocity because it will require a <em>smaller force</em> to stop it when compared to a bicycle with a higher velocity that needs a<em> bigger force.</em>

Explanation:

The question above is related to "Newton's Law of Motion." According to the <em>Third Law of Motion</em>, whenever an object exerts a force on another object <em>(action force)</em>, an equal force is exerted against it. This force is of the same magnitude but opposite direction.

When it comes to moving bicycles, the force that stops their movement is called "friction." Applying the law of motion, the higher the speed, the higher the force<em> </em>that is needed to stop it while the lower the speed, the lower the force<em> </em>that is needed to stop it.

8 0
3 years ago
For the electric power transmission system shown in the figure above, what is the ratio ns/np for the step-up transformer? assum
Ann [662]
I am attaching the missing figure

If we assume 100% efficiency, this means that the input power of the transformer must be equal to the output power

We divide output/input

240,000/12,000 = 20

This means that the transformer has a turns ratio of 1:20

<span>ns/np = 20/1 = 20

The voltage is amplified 20 times by the transformer, but this also means that the current decreases by a factor of 20, so the total power remains the same.</span>

7 0
3 years ago
Question 4. Calculate the kinetic energy of a Year 11 pupil (mass 55Kg)
bogdanovich [222]

Answer:

990 J

Explanation:

Kinetic energy is:

KE = ½ mv²

Given m = 55 kg and v = 6 m/s:

KE = ½ (55 kg) (6 m/s)²

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4 0
3 years ago
How do you communicate better
dedylja [7]
Answer: Be honest, have confidence, talk face to face, listen to your partner's words, etc.

Hope this helps!
6 0
3 years ago
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