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lozanna [386]
3 years ago
14

A 600 kg car is at test and then accelerated to 5m/s , what is its original kinetic energy

Physics
1 answer:
ycow [4]3 years ago
3 0

Answer:

0 J

Explanation:

Kinetic energy is defined as:

KE = 1/2 m v²

where m is mass and v is velocity.

The car starts at rest, so it has zero velocity.  Therefore, its initial kinetic energy is 0 J.

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What would happen to the wavelength if the frequency was doubled?
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Answer:

λ = hv

If frequency is doubled :

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Calculate the mass 9f the earth, assuring that uts is sphere with radius 6.67×10^6m.​
MA_775_DIABLO [31]

Answer:

6.86 × 10²⁴ kg

Explanation:

The mass of the earth m = density of earth, ρ × volume of earth, V

m = ρV

The density of the earth, ρ = 5515 kg/m³ and since the earth is a sphere, its volume is the volume of a sphere V = 4πr³/3 where r = radius of the earth = 6.67 × 10⁶ m

Since m = ρV

m = ρ4πr³/3

So, substituting the values of the variables into the equation for the mass of the earth, m, we have

m = 5515 kg/m³ × 4π(6.67 × 10⁶ m)³/3

m = 5515 kg/m³ × 4π × 296.741 × 10¹⁸ m³/3

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8 0
2 years ago
Amy throws a softball through the air. What are the different forces acting on the ball while it’s in the air? The softball expe
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<h2>The different forces acting on the ball while its in air</h2>

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7 0
3 years ago
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White raven [17]

Answer:

The maximum current, in amperes, that a conductor can carry continuously under the conditions of abuse without exceeding its temperature rating.

5 0
3 years ago
Need help ??? Please
Yanka [14]
Is there information in the previous question which relates to this one?
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