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3 years ago

What do you think will happen to dirt and rocks on the Mountainside when the ice melts

1 answer:

3 0

This question is personal preference... just answer with whatever YOU think, there probably isn’t s wrong answer if I’d guess.

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balls a, with a mass of 20 kg, is moving to the right at 20 m/s. At what velocity should Ball B, with a mass of 40 kg, move so t

Leya [2.2K]

In that case, their momentum must be equal.
So, m1v1 = m2v2
20 * 20 = 40 * v2
v2 = 400 / 40
v2 = 10

In short, Your Answer would be: 10 m/s

Hope this helps!

3 0

3 years ago

The image shows mountains in Alaska.

zalisa [80]

Answer:

A syncline is visible.

Explanation:

A syncline is visible.

8 0

3 years ago

Read 2 more answers

Where does the energy that is used to ride a bicycle up a hill come from and how is it classified?

MariettaO [177]

Well when you eat you get energy and then you use it to ride up the hill sorry I don't know how it is classified

7 0

3 years ago

Read 2 more answers

(1) Assume that the lights in your kitchen use 300 watts. How much energy (in kWh) does it use and how much does it cost to leav

lbvjy [14]

Answer:

the cost to leave the lights on 24 hours a day for one year is 31,536 cents or 315.36 dollars

Explanation:

Given that;

P = 300 watts = 300/1000 = 0.3

t = 24hrs a day

In a calendar year, we have 365 days

so;

E = 0.3 × 365 × 24

E = 2628 KWh

given that; 1 KWh = 12 cent

then 2628 KWh is x

x = 2628 × 12

x = 31,536 cents or 315.36 dollars

Therefore, the cost to leave the lights on 24 hours a day for one year is 31,536 cents or 315.36 dollars

7 0

3 years ago

Two trains, each having a speed of s, are headed at each other on the same straight track. A bird that can fly at speed 2s flies

juin [17]

Answer:

The total distance the bird travels is d.

Explanation:

Each train travels at the speed s. They will meet at the center, a distance d/2 (which is where the bird might be crushed). Each train travels the same distance d/2 in a time t which is also equal for both. This is also the time the bird spends travelling between them.

For any of the train, the time t is the distance divided by the speed.

$t = \dfrac{d/2}{s} = \dfrac{d}{2s}$

The bird travels at the speed of 2s. Its distance is given by the product of its speed and the time taken.

$d_\text{Bird} = \dfrac{d}{2s}\times 2s = d$

3 0

3 years ago