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3 years ago

Which major biome group is most of the united states part of?

1 answer:

4 0

Mainly it belongs in the deciduous forest biome. The U.S also includes the desert, tundra, and coniferous forest biomes.

Put this under 'Geography' next time.

Hope this helps!

~GeeksandNerds

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Lighting McQueen goes from rest to 30 m/s in 3.0 seconds. What is his<br> acceleration ?

alisha [4.7K]

Answer:

10 meters per seconds or 10m/s

Explanation:

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3 years ago

I need to know how to solve this problem for an upcoming exam

Nataly_w [17]

W=f*d = 5000N * 10 stories * each 4m = 200 000 J

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3 years ago

There is concern that extra additives in detergents can

shtirl [24]

Answer:

Look below.

Explanation:

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3 years ago

The Sears Tower is nearly 400 m high. How long would it take a steel ball to reach the ground if dropped on the top? What will b

kipiarov [429]

Answers:

a) 9.035 s

b) -88.543 m/s

Explanation:

The described situation is related to vertical motion (especifically free fall) and the equations that will be useful are:

$y=y_{o}+V_{o}t+\frac{1}{2}gt^{2}$ (1)

$V=V_{o}+gt$ (2)

Where:

$y=0$ is the final height of the steel ball

$y_{o}=400 m$ is the initial height of the steel ball

$V_{o}=0$ is the initial velocity of the steel ball (it was dropped)

$V$ is the final velocity of the steel ball

$t$ is the time it takes to the steel ball to reach the ground

$g=-9.8 m/s^{2}$ is the acceleration due to gravity

<u>Knowing this, let's begin with the answers:</u>

<h2>a) Time it takes the steel ball to reach the ground</h2>

We will use equation (1) with the conditions listed above:

$0=y_{o}+\frac{1}{2}gt^{2}$ (3)

Isolating $t$ :

$t=\sqrt{\frac{-2y_{o}}{g}}$ (4)

$t=\sqrt{\frac{-2(400 m)}{-9.8 m/s^{2}}}$ (5)

$t=9.035 s$ (6)

<h2>b) Final velocity of the steel ball</h2>

We will use equation (2) with the conditions explained above and the calculaated time:

$V=gt$ (7)

$V=(-9.8 m/s^{2})(9.035 s)$ (8)

$V=-88.543 m/s$ (9) The negative sign indicates the direction of the velocity is downwards

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3 years ago

A car traveling at an initial velocity of 12.0 m/s accelerates at a constant rate to 20.0 m/s over a time of 4.00 s. How far did

nasty-shy [4]

1 second - 32m
2 second - 84m
3 second - 156m
4 second - 248m
Hope this helps

6 0

3 years ago

Read 2 more answers