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denis-greek [22]

3 years ago

13

a box is pulled by by two forces. the first force is 50 newtons west and the second force is 20 newtons east. find the resultant

force

1 answer:

Oliga [24]3 years ago

8 0

Hope this helps you!

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Sally and Susie are astronauts. They went outside the space station to fix something.

rodikova [14]

Answer:

Because sound doesn't move in vacuum (of space)

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2 years ago

Stephanie is riding her bicycle to the park. The chemical energy used to pedal the bicycle is transformed into __________.

Jet001 [13]

Answer:I'm gonna say mechanical or kinetic depending on how you look at it.

Explanation:

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2 years ago

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Which of the four fundamental forces is responsible for holding together the molecules of the pizza dough as it is spinning in t

defon

Answer:

None.

Explanation:

Molecules are formed by an element's need or excess of electrons. For example, in nature oxygen generally exists as 02. Other molecules are formed via chemical reaction. The example here is the burning of gasoline. Gasoline's two main byproducts are water and carbon dioxide.

Hydrogen as an atom has one electron making it unstable. Put a second hydrogen atom next to the first and the two atoms will share electrons to fill the first energy level the atom needs to be stable.

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2 years ago

If you stood on a planet with four times the mass of Earth, and twice Earth's radius, how much would you weigh?

nikdorinn [45]

Answer:

1/4 times your earth's weight

Explanation:

assuming the Mass of earth = M

Radius of earth = R

∴ the mass of the planet= 4M

the radius of the planet = 4R

gravitational force of earth is given as = $\frac{GM}{R^{2} }$

where G is the gravitational constant

Gravitational force of the planet = $\frac{G4M}{(4R)^{2} }$

= $\frac{G4M}{16R^{2} }$

= $\frac{GM}{4R^{2} }$

recall, gravitational force of earth is given as = $\frac{GM}{R^{2} }$

∴Gravitational force of planet = 1/4 times the gravitational force of the earth

you would weigh 1/4 times your earth's weight

3 0

3 years ago

Can someone help me with the exercise 3 only c,d,e please!!!

saul85 [17]

I'm not sure...
I feel ya.

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3 years ago

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