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Dahasolnce [82]
3 years ago
7

{WILL GIVE (Brain lies t) TO FULL ANSWERS}

Physics
2 answers:
Nataly_w [17]3 years ago
5 0

Answer:

1. Their temperature and luminascity

2. The sun

3. Main sequence (im not sure of the answer tho)

4. Because of the color the white dwarfs are white and the sun in and orange/red color

5. Blue giants

<em>~I hope this helps! Peace :D</em>

kap26 [50]3 years ago
4 0

Answer:

1: surface temperature

2: red giant

3: The brightest stars are called supergiants. Star clusters are rich in stars just off the main sequence called red giants. Main sequence stars are called dwarfs.

4: A white dwarf is very dense

5: red giant

plz mark me as brainliest :)

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An object originally at rest, is accelerated uniformly along a straight line to a speed of 8m/s in 2s. What is the acceleration
Anna11 [10]

Answer:

4m/s²

Explanation:

Initial velocity (u) = 0 m/s

Final velocity (v) = 8 m/s

Time taken (t) = 2 sec

Acceleration (a) = ?

We know

a  =  \frac{v - u}{t}  \\  =  \frac{8 - 0}{2} \\  =  \frac{8}{2}  \\  = 4 \: m |s ^{2}

Hope it will help :)

3 0
3 years ago
What force is applied to a 60 kg person if it takes 7.8 seconds to reach a speed of 12.86 m/s from rest?
docker41 [41]

Answer:

drag

Explanation:

drag is the force that acts against any moving object.

if it takes him any amount of time to get from one speed to another, it is caused by drag.

3 0
2 years ago
What is the kinetic energy of a 700 kg race car that has a velocity of 80 m/s?
asambeis [7]
KE = 1/2 mv^2

KE = 1/2 (700)(80)^2

KE = 2240000 J
4 0
4 years ago
Would the astronaut fall to the ground more
Softa [21]

Answer:

More quiclky

Explanation:

In Earth, there is a gravitional force. So that forces pushed you down faster.

4 0
2 years ago
A point charge that is exactly q =3 mu or micro CC is at the origin. In this problem, assume that the Coulomb constant k = 8.99
Simora [160]

Answer:

(a) V1 = 8990.00 V

V2 = 8960.13 V

Explanation:

Parameters given:

q =3 mC

k = 8.99 * 10⁹ Nm²/C²

x1 = 3 m

x2 = 3.01 m

Electric potential is given as:

V = kq/r

Where

k = Coulombs constant

q = charge

r = distance

Potential at x1 is:

V1 = (8.99 * 10⁹ * 0.000003)/(3)

V1 = 8990.00V

Potential at x2 is:

V2 = (8.99 * 10⁹ * 0.003)/(3.01)

V2 = 8960.13 V

7 0
3 years ago
Read 2 more answers
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