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3 years ago

1. Using pollen grains placed in water,

Physics

1 answer:

Bezzdna [24]3 years ago

6 0

hope it helps!!!!!!!!!!!!!!!

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What causes an atom to be neutral?

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If there are the same number of protons (+) as electrons (-) they will cancel out and make the atom neutral.

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3 years ago

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Energy resources that exist in limited amounts and, fonts used, cannot be replaced except over the course of millions of years a

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3 years ago

· A hot, just-minted copper coin is placed in 101 g of water to cool. The water

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3 years ago

You observe a plane approaching overhead and assume that its speed is 600 miles per hour. The angle of elevation of the plane is

scZoUnD [109]

Answer:4.34 miles

Explanation:

first Elevation = $19^{\circ}$

After 1 minute Elevation changes to $59^{\circ}$

Ditsance travelled in 1 minute = $600\times \frac{1}{60}$ =10 mile

Now

tan59= $\frac{H}{x}$

H=xtan59

tan19= $\frac{H}{10+x}$

H= $\left ( 10+x\right )tan19$

Equating H

we get

1.319x=10tan19

x=2.61 miles

H= $2.61\times tan59$ =4.34 miles

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3 years ago