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spayn [35]
3 years ago
9

Even though when we use this non–renewable resource to generate power it is harmful to the environment, it is still the most pop

ular resource used in the United States.
A. coal
B. natural gas
C. nuclear
D. petroleum

I'm giving brainiest to whoever comments first!
Physics
2 answers:
mart [117]3 years ago
6 0
I think the answer is coal or natural gas
jarptica [38.1K]3 years ago
5 0
<h2>A. Coal</h2><h2 />

Coal produces half of the electricity in the United States.  Sadly, when coal is burned as fuel, it gives off carbon dioxide, the main greenhouse gas that is linked with global warming.

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The barrel of a rifle has a length of 0.855 m. A bullet leaves the muzzle of a rifle with a speed of 553 m/s. What is the accele
Novay_Z [31]

Answer:

Acceleration of the bullet will be 1778835.6 m/sec^2      

Explanation:

We have given length of the barrel refile s= 0.855 m

When the bullet leaves the muzzle its velocity is 553 m/sec

So final velocity v = 553 m/sec

Initial velocity will be 0 that is u = 0 m/sec

According to third equation of motion v^2=u^2+2as

553^2=0^2+2\times a\times 0.855

a=178835.6m/sec^2

5 0
4 years ago
Examine the diagram of the cell cycle.
gavmur [86]

sorry if i'm mistaken but i'm pretty sure its A) Y

3 0
3 years ago
Read 2 more answers
1. li took 2 } seconds for a car's vclocity to change from 20 m/s to 15 m/s. The mass of the car was 1370 kg. What force was req
Pani-rosa [81]

Answer:

Do you still need help??

Explanation:

3 0
3 years ago
Explain the term "avalanche state"
vagabundo [1.1K]

Answer:

The downwind side of an obstacle such as a ridge. The addition of weight on top of a snowpack, usually from precipitation, wind drifting, or a person. An avalanche that releases from a point and spreads downhill collecting more snow - different from a slab avalanche. Also called a point-release or sluff.

Explanation:

5 0
3 years ago
a car headed north at 15 m/s accelerates for 4.25 s to reach a velocity of 28.3 m/s. What is the acceleration of the car?
Liono4ka [1.6K]

<u>Answer:</u>

The acceleration of the car is 3.13 m/s^2

<u>Explanation:</u>

In the question it is given that car initially heads north with a velocity 15 m/s. It then accelerates for 4.25 s and in the end its velocity is 28.3 m/s.

initial velocity u = 15 m/s

time t=4.25 s

final velocity v=28.3 m/s

The equation of acceleration is

a= \frac{(v-u)}{t}

= \frac{(28.3-15)}{4.25} =  \frac {13.3}{4.25} =3.13m/s^2

The value of acceleration is positive, here since the car is speeding up. If it was slowing down the value of acceleration would be negative.

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3 years ago
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