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3 years ago

15

While hiking in the mountains, tanya observed a narrow and steep valley with a stream at the bottom of it. what most likely caus

ed the valley to first form?

2 answers:

leva [86]3 years ago

8 0

all of the answers that i have gotten off this website have been false ya'∞ll should be a shamed

Juliette [100K]3 years ago

5 0

Erosion over thousands of millennia from the stream or river in the valley

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A man has a mass of 66 kg on earth. What’s his weight in pounds?

Vlad1618 [11]

Answer:

646.8 N

Explanation:

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3 years ago

A 60kg student traveling in a 1000kg car with a constant velocity has a kinetic energy of 1.2 x 10^4 J. What is the speedometer

777dan777 [17]

Answer:

17.64 km/h

Explanation:

mass of car, m = 1000 kg

Kinetic energy of car, K = 1.2 x 10^4 J

Let the speed of car is v.

Use the formula for kinetic energy.

$K = \frac{1}{2}mv^{2}$

By substituting the values

$1.2\times 10^{4} = \frac{1}{2}\times 1000\times v^{2}$

v = 4.9 m/s

Now convert metre per second into km / h

We know that

1 km = 1000 m

1 h = 3600 second

So, $v = \left (\frac{4.9}{1000} \right )\times \left ( \frac{3600}{1} \right )$

v = 17.64 km/h

Thus, the reading of speedometer is 17.64 km/h.

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3 years ago

For the potential , determine the number of bound states?A)6 b)4 c) 3 d) 1

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Do you see that blank, open space after the word "potential ..." ?

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3 years ago

Why are there variations of traits within a population?

nydimaria [60]

Answer:

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Explanation:

Hope this helps!

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3 years ago

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Distance measurements based on the speed of light; used for objects in space

Vika [28.1K]

Answer : Yes, distance measurements based on the speed of light used for objects in space.

Explanation : A light year is measurement of distance that light travel in a one year.

In a one year light travels 9460000000000 kilometer.

We know that, speed of light is $3\times10^{8}\ m/s$

and time is 31536000 seconds in 1 year

so, distance = speed of light X time

Now, the light year is $9.4608\times10^{15} meter$

Example : The nearest star to earth is about 4.3 light year away.

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3 years ago