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Genrish500 [490]
3 years ago
8

Molly does not have many activities after school, so she has plenty of time to exercise. She has never been very athletic and pl

ans to start by exercising two hours a day five days a week. Is this a good plan?
OPTIONS:

A.
Yes, she should dive right in.
B.
No, no one can exercise that much.
C.
Yes, if she has the time there is no excuse.
D.
No, smaller goals would be better.

PLEASE NO LINKS
Physics
1 answer:
elixir [45]3 years ago
4 0
The answer is D No, smaller goals would be better
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A roller coaster is stationary at the top of a ramp.
Serjik [45]

Answer:

A

Explanation:

The roller coaster is stationary so the kinetic energy would be zero, but it is at the top of ramp so the potential energy would be high as its gravitational  so it would have to be A

6 0
2 years ago
As light from a star spreads out and weakens, do gaps form between the photons?<br>​
Zolol [24]

Answer:

There are no gaps in space between the photons as they travel. If you were to look at a wave then you'd come  to a conclusion that indeed that there aren't any gaps unless they are specifically placed.The light from a distance star indeed spreads out and weakens as it travels, but this just reduces the wave strength and does not introduce gaps.

3 0
3 years ago
HELP. A river flows South with a speed of 8m/s. From the shore, you see a boat moving South with a speed of 10 m/s. From their f
riadik2000 [5.3K]

Answer:

18 m/s

Explanation:

Given that,

Speed of river is 8 m/s due South

From the shore, you see a boat moving South with a speed of 10 m/s. Both boat and river are moving in same direction. The resultant velocity will add up.

v = 10 m/s + 8 m/s

v = 18 m/s

Hence, the rowers are moving with a speed of 18 m/s.

3 0
3 years ago
to determine the mass of the central object, we must apply newton's version of kepler's third law, which requires knowing the or
mixer [17]

The approximate orbital period of this star is 13 years.

<h3>What is Kepler's third law?</h3>

The square of a planet's period of revolution around the sun in an elliptical orbit is directly proportional to the cube of its semi-major axis, states Kepler's law of periods.

T² ∝ a³

The time it takes for one rotation to complete depends on how closely the planet orbits the sun. With the use of the equations for Newton's theories of motion and gravitation, Kepler's third law assumes a more comprehensive shape:

P² = 4π² /[G(M₁+ M₂)] × a³

where M₁ and M₂ are the two circling objects' respective masses in solar masses.

Learn more about Kepler's third law here:

brainly.com/question/1608361

#SPJ1

6 0
1 year ago
8. (-/2 Points]
gogolik [260]

Answer:

ответ семь

Explanation:

Добавить eght то девять и да

7 0
2 years ago
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