3 years ago

In which country can you see the northern lights the best?

Physics

1 answer:

Alinara [238K]3 years ago

8 0

I think Sweden is the best answer

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san4es73 [151]

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2 years ago

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Define in own words.

nevsk [136]

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3 years ago

a roller coaster begins at the top of a hill if it acelerates at the rate of 2 m/s2 and has a mass of 2000 kg what net force is

AlladinOne [14]

Answer:

$\boxed {\boxed {\sf 4000 \ Newtons }}$

Explanation:

Force can be found by multiplying the mass by the acceleration.

$F=m*a$

The mass of the roller coaster is 2000 kilograms and the acceleration is 2 meters per second squared.

$m= 2000 \ kg \\a= 2 \ m/s^2$

Substitute the values into the formula.

$F= 2000 \ kg * 2 \ m/s^2$

Multiply.

$F= 4000 \ kg*m/s^2$

1 kg*m/s² is equal to 1 N
Therefore our answer of 4000 kg*m/s² is equal to 4000 Newtons

$F= 4000 \ N$

The net force acting on the roller coaster is 4000 Newtons.

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2 years ago

2. How important salad dressings in a salad?

Papessa [141]

Answer:

Well its what makes a salad taste good.

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3 years ago

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If a liquid has a volume of 620 cm cubed and a mass of 480 gm, what is its density?

docker41 [41]

Answer: 0.774 g/cm^3

Explanation:

Density is measured in g/cm^3

480g / 620cm^3 = 0.774 g/cm^3

Does this help? Sorry if not.

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3 years ago

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