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3 years ago

Name the two components that make orbital motion, and explain why objects stay in orbit.

1 answer:

4 0

For orbits to happen in space there need to be two forces: gravity and forward velocity. The gravity keeps the object from flying into space, while the velocity keeps the object from crashing into the planet.

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Which is the correct formula for finding the frequency of an electromagnetic wave? f = c – f = f = + c f =

liubo4ka [24]

The answer for the online test is going to be the last one, D

6 0

3 years ago

A system has two possible energy states, E0 and E1 (with E1 > E0). If the difference between these energy states grows (E0 an

Ugo [173]

Answer:

The number of particles in state E0 over the number of particles in state E1 will reduce

Explanation:

E0 represents the ground level state when all the particles have same energy level.

E1 represents excited state in which only a few particle reaches

E0 and E1 get further apart means that the energy difference between the two level increases.

Thus, the number of particles in state E0 over the number of particles in state E1 will reduce.

5 0

3 years ago

5.<br> When your brakes fail, you should<br> The answer is B

miskamm [114]

Answer:

pull over and bleed them to see if you need a new system then you should check you brake pads and see if their worn if all else fails pull over and kiss your bum goodbye

Explanation:

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3 years ago

What is the correct order of increasing energy?

Gnom [1K]

Answer:

Microwaves, visible light, ultraviolet light, x-rays, γ-rays

Explanation:

The energy of any wave is given by :

$E=h\nu$

h = Planck's constant

$\nu$ is the frequency of wave

It is clear that the energy of any wave is directly proportional to its frequency. Gamma rays have maximum frequency. Out of given options microwaves have least frequency.

So, the increasing order of energy is "microwaves, visible light, ultraviolet light, x-rays, γ-rays". Hence, the correct option is (5).

8 0

2 years ago

A boy walked 4m east then 3m south find the displacement

Solnce55 [7]

Answer:

Explanation:

$4^{2}+3^{2}=5^{2}\\5^{2}=25$

Use the Pythagorean theorem to calculate the long edge of the triangle, which would be his displacement.

3 0

2 years ago