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iren [92.7K]
2 years ago
8

Will mark brainliest. TRUE OR FALSE. the acceleration due to gravity is caused by a field force

Physics
1 answer:
choli [55]2 years ago
5 0

Answer:

Yes, It is true.

The acceleration due to gravity is caused by field force.

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A double star has two components of equal brightness, each with a magnitude of 8.34. if these stars are so close together that t
lesya692 [45]
Assuming that the magnitude is additive, then you simply have to add the brightness four times. This is because each star has 2 magnitudes of 8.34. As a result, you have to add 4 magnitudes of 8.34. The solution is as follows:

Magnitude = 4(8.34) 
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3 years ago
Which has the highest heat capacity? (values of heat capacities and calculations are unnecessary).
KATRIN_1 [288]

Water has the maximum specific heat capacity of any fluid.

The amount of heat that one gram of a material needs either absorb or lose in order to alter its temperature by a degree Celsius is known as specific heat. This equates to one caloric, or 4.184 Joules, for water.

<h3>High heat capacity: what is it?</h3>
  • Consider the amount of time it takes for a pot to get warm to the touch on the stove as opposed to how long it takes for the water within to warm up.
  • A substance with a high heat capacity may absorb a lot of heat before registering a change in temperature.
<h3>Why does water have the greatest ability to retain heat?</h3>

Although the hydrogen bonds in water are much too weak to be compared to intra - molecular bonds like covalently or ionic bonds, they are nevertheless strong enough to require a lot of energy to break. Water boils at 100°C for this reason.

Many people believe hydrogen bonding is the cause of water's high specific heat.

learn more about heat capacity here

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1 year ago
Which phrases describe all the outer planets’ motion? Select two options.
AysviL [449]

Answer:

Fast rotation

Slow revolution

Explanation:

Solar system has 8 planets. 4 inner rocky planets - Mercury, Venus, Earth and Mars and 4 outer gaseous planets - Jupiter, Saturn, Uranus and Neptune.  The outer planets have few common features.

They are gaseous. There  period of revolution is larger than the inner planets which means that they have slow revolution about the Sun. One day on the outer planets is smaller than the inner planets which means they have fast rotation.

For example, Jupiter has revolves around sun in 11.86 Earth years and rotates about axis in 9.8 Earth hours. Uranus revolves around sun in 84 Earth years and rotates on its axis 17.9 Earth hours.

8 0
3 years ago
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A transformer is used to light a lamp rated 40w, 240v from a 400v A.C supply. Calculate:
zubka84 [21]

Answer:1.81

(a) Explanation:the turn ratio= input voltage÷output voltage.

400÷220=1.81.

Don't know how to solve b part...

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3 years ago
What method would produce disease resistant cattle in the shortest amount of time?
xenn [34]
My brother said it is D
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3 years ago
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