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Natasha2012 [34]
3 years ago
7

Need help quick hurry!!!!!!

Physics
2 answers:
Eva8 [605]3 years ago
5 0

Answer:

The answer of this question is C

Schach [20]3 years ago
4 0

Answer:

c

Explanation:

c beacause we have both  that are in c

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How does the scattering of tiny particles in the air affect the colors of the sky at sunrise and sunset
timofeeve [1]

It affects the colors of the sky at sunrise and sunset because only the longer-wavelengths colors are visible.

4 0
4 years ago
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If an object has a mass of 1417g and it is moved 47 meters in 90 seconds, how much power was used?
astraxan [27]

Mass of the object is given as

m = 1417 g = 1.417 kg

now the speed of object is given as

v = \frac{d}{t}

here we know that

d = 47 m

t = 90 s

now we will have

v = \frac{47}{90} = 0.52 m/s

now we will have kinetic energy of the object as

KE = \frac{1}{2}mv^2

KE = \frac{1}{2}(1.417)(0.52)^2

KE = 0.19 J

now the power is defined as rate of energy

so here we can find power as

P = \frac{KE}{t}

P = \frac{0.19}{90} = 2.14\times 10^{-3} W

so above is the power used for the object

3 0
4 years ago
Which contribution did Johannes Kepler make?
goldenfox [79]

Answer:

Tycho's data let Kepler refine his model for planetary motion. It led him to create what we today call Kepler's three laws of planetary motion. The first law of planetary motion states: Planets move around the sun in an elliptical orbit, where the sun is one of the foci.

Explanation:

Johannes Kepler's most influential accomplishments in astronomy were his three Laws of Planetary Motion, which were used by Isaac Newton to develop his theory of universal gravitation.

I hope this helps

5 0
4 years ago
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An object of mass 2 kg rests on the floor, as shown in the picture. A force of 45 N, making an angle of 60° to the vertical, is
MA_775_DIABLO [31]

Answer:B

Explanation:

I just did that

6 0
4 years ago
How are motion and acceleration alike? How are they different?
ratelena [41]

Answer:

Motion is the action of moving, and acceleration is the action of moving faster or increasing speed. I guess you could say they are both in a state of motion or moving.

Explanation:

4 0
3 years ago
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