3 years ago

People under going physical therapy after an injury often find it helpful to perform exercise in water? Why?

1 answer:

7 0

Because water puts less weight on the joints helping prevent more pain and potentially problems

Also if you could give me Brainily that would be amazing

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A train travels from over city to another its initial velocity is lower than its final velocity this is a example of

Anni [7]

I belive the answer is D)

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2 years ago

Water flows over a section of Niagara Falls at the rate of 1.2×106 kg/s and falls 50.0 m. How much power is generated by the fal

quester [9]

Answer:

5.88×10⁸ W

Explanation:

Power = energy / time

P = mgh / t

P = (m/t) gh

P = (1.2×10⁶ kg/s) (9.8 m/s²) (50.0 m)

P = 5.88×10⁸ W

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2 years ago

The catapults on the uss george h.w. bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. find

vlabodo [156]

Hope this helps, have a great day ahead!

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3 years ago

At a particular instant, a hot air balloon is 100 m in the air and descending at a constant speed of 2.0 m/s. at this exact inst

rewona [7]

Answer:

86.4 m horizontal from landing spot

Explanation:

Find out how long before the ball hits the ground

vertical speed of ball = -2 m/s gravity = - 9.81 m/s^2

find time to hit ground from 100 m

( height will be zero when it hits the ground)

0 = 100 - 2 t - 1/2 ( 9.81) t^2

use Quadratic Formula to find t = 4.32 seconds

horizontal speed of ball = 20 m/s

in 4.32 seconds it will travel horizontally 20 m/s * 4.32 s = 86.4 m

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1 year ago

What unit is used for speed? 1. m/s 2. S 3. m/s2 4. m

bixtya [17]

Answer:

The unit of speed is m/s.

7 0

2 years ago