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creativ13 [48]
4 years ago
12

Plzzzzzzzzzzzzzzzzzzz help me in these 3 questions plzzzzzzzzzzzzzzzzz ASAP!!

Physics
1 answer:
lana [24]4 years ago
3 0
A infared light has a higher
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Explain why xrays are used to take images of inside the body but UV isnt
Sidana [21]

Answer:

X-rays go all the way through the body, but ultraviolet rays do not.

Explanation:

An x-ray will show inside the body, but uv light isn't strong enough to go all the way through the body.

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All known matter is made up of Question 1 options:
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the answer is (a) molecules

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Which force acts as an object to move it from rest or a constant straight-line motion?
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8 0
4 years ago
A 290 gg bird flying along at 6.2 m/sm/s sees a 9.0 gg insect heading straight toward it with a speed of 34 m/sm/s (as measured
Murrr4er [49]

Answer:

The bird's speed immediately after swallowing is 4.98 m/s.

Explanation:

Given that,

Mass of bird = 290 g

Speed = 6.2 m/s

Mass of sees = 9.0 g

Speed = 34 m/s

We need to calculate the bird's speed immediately after swallowing

Using conservation of momentum

m_{1}v_{1}+m_{2}v_{2}=(m_{1}+m_{2})v_{3}

Put the value into the formula

0.290\times6.2+0.009\times(-34)=(0.290+0.009)\times v_{3}

v_{3}=\dfrac{0.290\times6.2-0.009\times34}{(0.290+0.009)}

v_{3}=4.98\ m/s

Hence, The bird's speed immediately after swallowing is 4.98 m/s.

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3 years ago
A scientist is studying a sample of matter the matter has no definite shape or volume and it can conduct an electric current. Th
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