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adelina 88 [10]
2 years ago
6

Select the correct answer.

Physics
1 answer:
VladimirAG [237]2 years ago
8 0

Answer:

It's effective temperature.

Explanation:

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Nuclear energy is over ___ times stronger than the chemical bonds between the atoms
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Answer:

1 millions times stronger

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A ball is thrown straight up from ground level. It passes a 2-m-high window. The bottom of the window is 7.5 m off the ground. T
slamgirl [31]

Answer:

u=14.48m/s

Explanation:

From the question we are told that:

Height of window h=2m

Height of window off the ground h_g=7.5m

Time to fall and drop t=1.3s

 

Generally the Newton's equation motion  is mathematically given by

 s=ut+\frac{1}{2}at^2

Where

h=ut+\frac{1}{2}at^2

2=u1.3-\frac{1}{2}*9.8*1.3^2

2=u1.3-8.281

u=7.91m/s^2  

Generally the Newton's equation motion  is mathematically given by

2as=v^2-u^2

Where

-2gh_g=v^2-u^2

-2*9.8*7.5=(7.91)^2-u^2

-147=62.5681-u^2

u=\sqrt{209.5681}

u=14.48m/s

Therefore the  ball’s initial speed

u=14.48m/s

8 0
2 years ago
What are two examples of population distribution?
Alex777 [14]
Three basic types of population distribution within a regional range are (from top to bottom) uniform, random, and clumped.
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You are riding on a school bus and suddenly get thrown forward. What did the bus just do?
sergij07 [2.7K]
The bus is going forward and suddenly stops
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Most oxygen in our atmosphere _____. has a single oxygen atom combines with carbon has two oxygen atoms has three oxygen atoms
andrew-mc [135]

Answer:

Two oxygen atoms

Explanation:

The majority of the oxygen in the air in our atmosphere consists of molecular oxygen (O_2), which consists of 2 atoms of oxygen, since free oxygen mainly form covalent bonds with other atoms of oxygen.

A small fraction of the oxygen, however, in the ozone form, which consists of 3 atoms of oxygen bond together (O_3).

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