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beks73 [17]
2 years ago
11

Where does cosmic microwave background radiation come from? A. It is radiation produced by pulsars and black holes that warps ou

r view of other galaxies. B. It is radiation formed from the invention of microwave ovens that gets transmitted through space just like our radio waves. C. It is radiation leftover from the Big Bang. D. It is the sign we are searching for to indicate intelligent life exists elsewhere in the universe. plzzzz help me asap
Physics
1 answer:
LuckyWell [14K]2 years ago
3 0

Answer:

C. It is radiation leftover from the Big Bang

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If you walk 1.2 km north and then 1.6 km east, what are the magnitude and direction of your resultant displacement?
SVETLANKA909090 [29]

B

Assume north and east as two sides of a right angled triangle. magnitude of the distance is then given by the length of the hypotenuse which is \sqrt{a^2 + b^2}

where a = 1.2 km north

and b = 1.6 km east

magnitude = 2 km

Direction is given by the angle between them, that is atan(a/b) = 36.86 deg north of east = 53.1 deg east of north.

8 0
3 years ago
If you speed up from rest to 12m/s in 3 seconds, what is your acceleration?
boyakko [2]


b) 4m/s/s

This is because you divide the speed you reach, by the time it takes to get to that speed:

12m/s ÷ 3s = 4m/s/s

The units come from what you divide, meters per second ÷ seconds this can be written as m/s/s or ms-² 

6 0
2 years ago
Read 2 more answers
What is an emergent ray​
dangina [55]

Answer:

Explanation:

the light ray leaving a medium in contrast to the entering or incident ray.

5 0
2 years ago
For a top player, a tennis ball may leave the racket on the serve with a speed of 55 m/s (about 120 mi/h). If the ball has a mas
inn [45]

Answer:

Yes is large enough

Explanation:

We need to apply the second Newton's Law to find the solution.

We know that,

F= ma

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a= \frac{v}{t}

Replacing the aceleration value in the equation force we have,

F= \frac{mv}{t}

Substituting our values we have,

F= \frac{(0.060)(55)}{4*10^{-3}}

F=825N

The weight of the person is then,

W = mg

W = (60)(9.8) = 558N

<em>We can conclude that force on the ball is large to lift the ball</em>

6 0
2 years ago
A horse pulls a plow with a 242 N force for
prohojiy [21]

Answer: The answer is D

Explanation: i had the same question and i just guessed and got it first try

4 0
3 years ago
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