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3 years ago

13

After nuclear explosions animals and humans can continue to die due to ingestion of radioactive particles and nuclear __________

____.
fallout

rainout

whiteout

1 answer:

egoroff_w [7]3 years ago

3 0

The answer is fallout pls give brainliest if this helped

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During photosynthesis, what is the source of the carbon in<br> the sugar (CH20) that is created?

irakobra [83]

Answer:

Carbon dioxide

Explanation:

During photosynthesis cells use carbon dioxide and energy of sun to make sugar molecules and oxygen.

Hope i helped u...

8 0

3 years ago

Two ice skaters, Daniel (mass 70.0 kg) and Rebecca (mass 45.0 kg), are practicing. Daniel stops to tie his shoelace and, while a

Ivan

Answer:

The magnitude of Daniel's velocity after collision is 6.84 m/s.

Explanation:

Given that,

Mass of Daniel = 70.0 Kg

Mass of Rebecca = 45.0 kg

Initial speed of Rebecca= 13.0 m/s

Final speed of Rebecca = 6.00 m/s

Angle = 54.1°

Suppose we need to calculate the magnitude of Daniel's velocity after the collision

We need to calculate the velocity of Daniel along x axis

Using conservation of momentum

$m_{d}u_{d}+m_{r}u_{r}=m_{d}v_{d}+m_{r}v_{r}\cos\theta$

Put the value into the formula

$0+45\times13.0=70\times v_{x}+45\times6\cos54.1$

$v_{x}=\dfrac{45\times13-45\times6\cos54.1}{70}$

$v_{x}=6.09\ m/s$

We need to calculate the velocity of Daniel along y axis

Using conservation of momentum

$m_{d}u_{d}+m_{r}u_{r}\sin\theta=m_{d}v_{d}+m_{r}v_{r}$

Put the value into the formula

$0+45\times6.00\sin54.1=70\times v_{y}+0$

$v_{y}=\dfrac{45\times6.00\sin54.1}{70}$

$v_{y}=3.12\ m/s$

We need to calculate the magnitude of velocity after collision

Using formula of velocity

$v=\sqrt{v_{x}^2+v_{y}^2}$

Put the value into the formula

$v=\sqrt{(6.09)^2+(3.12)^2}$

$v=6.84\ m/s$

Hence, The magnitude of Daniel's velocity after collision is 6.84 m/s.

3 0

3 years ago

Solve or answer each question <br><br> Please help

Slav-nsk [51]

Answer: I love you <3

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4 years ago

What is the mass of an object that requires a force of 4,900 Newton's to accelerate 7 m/s/s

Oliga [24]

Answer:

Explanation:

Formula

F = m * a

Givens

F = 4900

a = 7 m/s^2

Solution

4900 = m * 7 Divide by 7

4900/7 = m

700 kg = m

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3 years ago

Is a corroding metal a physical or chemical change?

fomenos

Answer:

Coording metal is a physical change.

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3 years ago

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