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xeze [42]
3 years ago
7

Question 5 help please

Physics
1 answer:
IrinaVladis [17]3 years ago
5 0

Answer:

It is another machine that helps the main machine. Hope that helps!

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6. Two light bulbs are designed for use at 120 V and are rated at 75 W and 150 W. Which light bulb has the greater filament resi
Nonamiya [84]

\\ \bull\tt\longrightarrow P=\dfrac{V^2}{R}

  • P is power
  • R is resistance

\\ \bull\tt\longrightarrow R=\dfrac{V^2}{P}

Hence

\\ \bull\tt\longrightarrow R\propto V

\\ \bull\tt\longrightarrow R\propto \dfrac{1}{P}

  • Therefore if power is low then resistance will be high.

The first bulb has less power hence it has greater filament resistance.

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3 years ago
Find the weight of an astronaut whose mass is 75 kg on the moon
gladu [14]
The formula for weight is always weight=mass X gravitational field strength.
We already know the mass is 75kg.
The gravitational field strength on the moon is 1.6N. To find out the weight, we can substitute these values in to the formula.
Weight=75 X 1.6
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Weight is measured on Neutons as it is a force.
8 0
2 years ago
Which of the following quantities are vectors?
Arte-miy333 [17]

Answer:

electric fields

Explanation:

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3 years ago
Use newton's first law of motion to explain why you feel tossed around whenever a roller coaster goes over a hill or through a l
ikadub [295]
Newton's first law states that an object at rest will stay at rest && an object in motion will remain in motion unless acted on by another force. With that being said you feel tossed around because you are initially at rest but when you ride the roller coaster you take it's course of motion. 

Hoped this helped!

4 0
2 years ago
Read 2 more answers
What does a pshycometer measure
erma4kov [3.2K]
It measures<span> the relative humidity in the atmosphere through the use of two thermometers. The first, a dry bulb thermometer, is used to </span>measure<span> the temperature by being exposed to the air. The second, a wet bulb thermometer,</span>measures<span> temperature by having the bulb dipped in a liquid.</span>
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