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Tom [10]
4 years ago
14

What type of wave cannot travel in a vacuum

Physics
2 answers:
AlexFokin [52]4 years ago
7 0

The Answer is Sound Waves because in the vacuum of space, there is no medium to transmit of these mechanical waves.

lions [1.4K]4 years ago
5 0

A sound wave. Because in a vacuum there is no medium in a vacuum. And the only wave that requires a medium to travel through is a sound wave.

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A plane is flying 2400 miles from a to
geniusboy [140]
From a to b speed is 600+40 = 640
from b to a speed is 600-40 = 560

let t be the number of hours of flight. This would mean it would have traveled a distance of 640 miles and the distance yet to travel is 2400-640t
Time left will be (2400-640t)/640. But if they were to return to a it would fly 640t miles at 560mph which will take (640t/560) hrs

(2400-640t) / 640 = 640t / 560
560(2400 - 640t) = 640t x 640
t = 1.75hrs
5 0
4 years ago
What is the average acceleration of a car that starts from
MAXImum [283]

Answer:

1.5m/s^2

Explanation:

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4 0
3 years ago
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Which statement would MOST LIKELY be claimed by the author of this passage? A) That man-made trade barriers are the biggest chal
podryga [215]

Answer:

A) That man-made trade barriers are the biggest challenge facing Africa's international trade success.

Explanation:

Based on the discussion of high trade costs, the presence of numerous tariffs, and problems with customs procedures and duties it is clear that the author feels that man-made trade barriers are the biggest challenge facing Africa's international trade success.

5 0
3 years ago
A ball is released from rest at a height of 10 m and falls freely to the
ElenaW [278]

Answer:

The new kinetic energy would be 16 times greater than before.

Explanation:

Kinetic energy is found using this formula:

  • KE = 1/2mv²
  • where KE = kinetic energy (J), m = mass (kg), and v = velocity (m/s)

We can see that kinetic energy is directly proportional to the square of the velocity, meaning that if the speed was increased by 4 times, then the kinetic energy would get increased by a factor of 16.

The velocity just before the ball hits the ground can be found by the equation:

  • √(2gh)

Let's substitute h = 10 m and h = 40 m into this formula.

  • √(2g(10))
  • √(2g(40))

We can see that the velocity increases by a factor of 4 (10 m → 40 m).

Therefore, this means that the kinetic energy would also be increased by a factor of (4)² = 16. Thus, the answer is D) The new kinetic energy would be 16 times greater than before.

6 0
3 years ago
Kenny and Chris are walking down the road. They walk a distance of 250meters in
ruslelena [56]

Explanation:

Distance is 250m

Time is 50sec

Formular

Speed= distance/time

Speed=250/50

Speed is 5m/s

If correct mark as brainliest

7 0
3 years ago
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