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Arte-miy333 [17]
2 years ago
8

if the momentum of a 1,400 kg car is the same as the truck in question 17, what is the velocity of the car?

Physics
1 answer:
ElenaW [278]2 years ago
5 0

Answer:

Explanation:

momentum is mass times velocity

p = mv

so take the momentum of the truck in question 17 and divide by the mass of this car

v = p/m = p / 1400

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What is the magnitude of the force that is exerted on a 20 kg mass to give it an acceleration of 10.0
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Answer:Mass of the body = 20 kg.

Final Velocity = 5.8 m/s.

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8 0
2 years ago
A small metal sphere has a mass of 0.19 gg and a charge of -23.0 nCnC. It is 10.0 cmcm directly above an identical sphere that h
RoseWind [281]

Answer:

  a = -7.29 m / s²

Explanation:

For this exercise we must use Newton's second law,

          F -W = m a

Force is electrical force

         F = k q₁ q₂ / r²

         k q₁ q₂ / r² -mg = m a

indicate that the charge of the two spheres is equal

         q₁ = q₂ = q

         a = (k q² / r² - m g) / m

         a = k q² / m r² - g

Let's reduce the magnitudes to the SI system

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        r = 10.0 cm (1m / 100cm) = 0.1000 m

let's calculate

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The negative sign indicates that the direction of this acceleration is downward

6 0
2 years ago
At which point or points does the pendulum have the greatest kinetic energy?
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4 0
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