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3 years ago

The first industrial revolution caused which of the following?

Advanced Placement (AP)

1 answer:

emmasim [6.3K]3 years ago

7 0

The answer should be D if I’m not mistaken..

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A ball is thrown at the ground from the top of a tall building. The speed of the ball in meters per second is v(t)=9.8t+v0, were

EleoNora [17]

Answer:

$V_0=2.7m/s$

Explanation:

The speed of the ball in meters per second is

$V(t)=9.8t+V_0$

Where t denotes the number of seconds since the ball has been thrown and $V_0$ is the initial speed of the ball. Then:

$V(2)=9.8(2)+V_0\\\\V(2)=19.6+V_0$

If the ball travels 25 meters during the first 2 seconds after it is thrown, what was the initial speed of the ball

Also, for constant acceleration motion, the average velocity is equal to the sum of final and initial velocities divided by 2 and to the distance divided by the time:

$\dfrac{V(t)+V_0}{2}=\dfrac{d}{t}$

Where you know:

t = 2s

$V(2)=9.8(2)+V_0=19.6+V_0$

d = 25m

Substituting (the units are ommited in the equationn, but added at end of the answer):

$\dfrac{V(2)+V_0}{2}=\dfrac{25}{2}$

$V(2)+V_0=25$

Thus, you have a system of equations:

$V(2)+V_0=25$

$V(2)=19.6+V_0$

Substituting the second into the first:

$19.6+V_0+V_0=25\\\\19.6+2V_0=25$

$2V_0=25-19.6\\\\V_0=5.4/2\\\\V_0=2.7m/s$

5 0

3 years ago

Use this paragraph: Carlon is using two wooden blocks to model the movement of Earth's plates. He pushes one block forward

marshall27 [118]

Answer:

the answer is normal fault srry so late hope this helps

4 0

3 years ago

if environco has an annual television advertising budget of $8,000,000 and revenue of $138,000,000 what percentage of revenue is

Natali [406]

The formula for finding the <span>percentage of revenue that is spent on advertising will be:

</span>Percentage of revenue that is spent on advertising = Advertising Budget / Revenue x 100%

Using the values, we get:

Percentage of revenue that is spent on advertising = (8,000,000/138,000,000) x 100% = 5.80%

This means 5.80% of <span>revenue is spent on advertising</span>

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4 years ago

AP PSYCHOLOGY: How do principles of classical conditioning work to create learning?

inysia [295]

Conditioning creates the brain's pattern recognition which makes it easier or harder. Abusive conditioning makes recognizing kind/nonviolent much more difficult, etc.

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3 years ago

Có một "tàu lạ" của nước ngoài hoạt động khảo sát dầu khí trên biển, cách bờ biển Vũng Tàu của nước ta 160 hải lý. Vận dụng nhữn

Vladimir79 [104]

Answer:

Explanation:

Có nhé

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3 years ago