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3 years ago

13

Salt water is denser than fresh water. What ecosystem would be most effective by this fact?

1 answer:

Julli [10]3 years ago

6 0

The Dead Sea is the answer.

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A string exerts a force of 20 N on a box at an angle of 38° from the horizontal. What is the horizontal

Gnoma [55]

Answer:

15.76N

Explanation:

horizontal component =Fcos¢ = 20cos38 = 15.76N

4 0

1 year ago

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The conduction of heat from hot body to cold body is an example of what thermodynamics process?<br>

Marizza181 [45]

Answer:

Heat flow

Explanation:

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1 year ago

3. The car's mass is 400 kg. It moves at a velocity of 20 m/s. Calculate the car's momentum. *

Orlov [11]

Answer:

momentum=mass×velocity

momentum =400kg×20m/s=8000kg.m/s

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3 years ago

Your backpack has a mass of 8 kg. You drop it from a height of 1.3m. How much work is done by gravity as the backpack falls?

olga_2 [115]

Answer:

The answer is C.

Explanation:

I guessed and it was right

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2 years ago

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Two bowling balls each have a mass of 6.8 kg. They are located next to each other with their centers 21.8 cm apart. What gravita

12345 [234]

Answer:

6.49 x 10^-8 N

Explanation:

formula is

F= G * ((m1 * m2)/r^2)

F = 6.67x10^-11 * ((6.8*6.8/.218)

F = 6.49 x 10^-8 Newtons

3 0

2 years ago