3 years ago

Kinetic energy problemset

Physics

1 answer:

Sonja [21]3 years ago

8 0

Answer:

KE = 4 mv2 m = 2xKE valami. V m.

Explanation:

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Force is classified as a push or a pull

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If a car is traveling at a velocity of +10m/s suddenly turns around and continues at the same speed, what is its new velocity?

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-10m/s

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only the magnitude of the velocity will change due to the change in direction of the car.

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3 years ago

A stone on ground is zero energy

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A stone on the ground does not have zero energy…there is an internal potential in every object. Aldo is not in action or in any mechanical motion it is being acted upon by gravity and also molecular forces and energy.

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A double charged ion is accelerated to an energy of 32.0 keV by the electric field between two parallel conducting plates separa

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Answer:

$E=8*10^5\frac{V}{m}$

Explanation:

The magnitude of the electric field between two parallel conducting plates is defined as:

$E=\frac{\Delta V}{d}$

Here $\Delta V$ is the potential difference between the plates and d its separation.

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$U=q\Delta V$

Solving for $\Delta V$ and replacing in the electric field formula:

$\Delta V=\frac{U}{q}\\E=\frac{U}{qd}$

In this case we have a double charged ion, so $q=2e$ :

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Define measurements.

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Answer:

act or process of measuring

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