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ANTONII [103]
3 years ago
8

Two planets in space gravitationally attract each other. if both the masses and distances are doubled, the force between them is

Physics
1 answer:
worty [1.4K]3 years ago
3 0
The force btw then remain the same
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In a particular experiment to study the photoelectric effect, the frequency of the incident light and the temperature of the met
qwelly [4]

Answer:

B. The number of electrons emitted from the metal per second increases.

Explanation:

Light consists of photons . Energy of each photon depends upon frequency of light . The increase in intensity increases the number of photons . It does not increase energy of photons .

So if a high intensity light falls on a photosensitive plate , each photon ejects one electron . So number of electrons increases if we increase intensity of photon. It does not increase kinetic energy of ejected electrons . Work function depends upon the nature of plate.

6 0
3 years ago
Opposite electric charges will repel, and like charges will attract.
DochEvi [55]
As it stands now, that statement is false.

There are two ways to make the statement true:

#1).  Exchange the places of the words "Opposite" and "like".

#2).  Exchange the places of the words "repel" and "attract".

Either ONE of these changes will make the statement true.
Doing BOTH of these changes will leave it false.
5 0
3 years ago
It is found that a 5.70 m segment of a long string contains three complete waves and has a mass of 180 g. The string is vibratin
Hoochie [10]

Answer:

1.9 m.

Explanation:

Three complete waves in the length of 5.7 m

The distance traveled by one complete wave is called wavelength.

Thus, the distance traveled by one wave = 5.7 / 3 = 1.9 m

Thus, the wavelength is 1.9 m.

3 0
3 years ago
Read 2 more answers
Calculate the following forces for a box with a mass=20.0 kg sitting on an incline of 29.0 degrees and a coefficient of friction
Anna007 [38]
Vertical force on the box=mg 
<span>the component of gravity parallel=mg*SinTheta </span>
<span>the component of gravity normal=mg*CosTheta </span>
<span>frictional force up the plane: mg*cosTheta*mu max, but if it is sitting still, it is equal and opposite to mg*cosTheta (it cannot be greater than this or it would go up the plane).</span>
3 0
3 years ago
The body can get water from milk, juices, fruits, and vegetables.
Softa [21]

Answer: yes it can but not enough to stay hydrated and keep your body going but you cant get water from milk lol

Explanation: hope this helpes

5 0
3 years ago
Read 2 more answers
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