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stich3 [128]
3 years ago
15

What would the color of this star cluster appear to be if you observed it from a distance so great that you could not make out t

he individual stars? What would the color of this star cluster appear to be if you observed it from a distance so great that you could not make out the individual stars?
A. green
B. violet
C. red
D. blue
Physics
1 answer:
makkiz [27]3 years ago
4 0

Answer:

D. blue

Explanation:

You might be interested in
Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. T
alex41 [277]

Answer:

30643 J

Explanation:

\mu_0 = Vacuum permeability = 4\pi \times 10^{-7}\ H/m

t = Time taken = 1 ns

c = Speed of light = 3\times 10^8\ m/s

E_0 = Maximum electric field strength = 1.52\times 10^{11}\ V/m

A = Area = 1\ mm^2

Magnitude of magnetic field is given by

B_0=\dfrac{E_0}{c}\\\Rightarrow B_0=\dfrac{1.52\times 10^{11}}{3\times 10^8}\\\Rightarrow B_0=506.67\ T

Intensity is given by

I=\dfrac{cB_0^2}{2\mu_0}\\\Rightarrow I=\dfrac{3\times 10^8\times 506.67^2}{2\times 4\pi \times 10^{-7}}\\\Rightarrow I=3.0643\times 10^{19}\ W/m^2

Power, intensity and time have the relation

E=IAt\\\Rightarrow E=3.0643\times 10^{19}\times 1\times 10^{-6}\times 1\times 10^{-9}\\\Rightarrow E=30643\ J

The energy it delivers is 30643 J

4 0
3 years ago
Bádminton is played to a score of
Temka [501]
Badminton is played to a score of 21 points
4 0
3 years ago
Read 2 more answers
A Honda Civic Hybrid weighs about 3200 lb .
Usimov [2.4K]
3200÷0.22= 145.4545...N
(it is an infinite decimal)
3 0
3 years ago
Read 2 more answers
Which statement is true if the refractive index of medium A is greater than that of medium B?
allsm [11]

Answer:

I think it is C

Explanation:

7 0
3 years ago
A bullet with a mass of 0.3 kg is fired out of a gun with a mass of 4 kg at 600 m/s. What is the recoil velocity on the gun?
slavikrds [6]

Answer:

According to the Conservation of Momentum,

Momentum of the gun = momentum of the bullet

M(gun)×V(gun)=m(bullet)×v(bullet)

4kg × V = 0.3kg × 600m/s²

V = (0.3 × 600)/4 = 45 m/s

The recoil velocity on the gun is <em><u>45 m/s</u></em>

<h3><u>45 m/s</u> is the right answer.</h3>
4 0
3 years ago
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