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3 years ago

15

A car advertisement claims their car can go from a stopped position to moving 60 miles per hour in 5 seconds. The advertisement

is describing the car's acceleration. speed. velocity. direction.

1 answer:

ASHA 777 [7]3 years ago

4 0

The advertisement is deciribing the car’s acceleration, as it gains speed when moving from 0-60.

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Waves can carry either ____ or __________ energy?

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Mechanical or Electromagnetic

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What is the potential energy of a 0.5 kg object sitting on a shelf that is 1.5 meters high?

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10. John does 176 J of work lifting himself a distance of 0.40 m. How

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3 years ago

A wave has a wavelength of 0.98 m and travels 2.0x10^2 m in 0.78 s. What is the frequency of the wave?

asambeis [7]

Answer:

261.64 hz

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2 years ago

The following charges are located inside a submarine: 2.75 μC, −9.00 μC, 27.0 μC, and −43.5 μC.(a) Calculate the net electric fl

Kaylis [27]

Answer with Explanation:

We know that by Gauss's Law

$E\cdot Flux=\frac{q_{inside}}{\epsilon _o}$

Where

$\epsilon _o$ is permitivity of free space

$q_{inside}$ is the net charge in the hull

Part a)

Applying the given values we get

$E\cdot Flux=\frac{(2.75+27-9-43.5)\times 10^{-6}C}{8.85\times 10^{-12}}\\\\\therefore E\cdot flux=-2.5\times 10^{6}$

Part b)

Since the sign of the electric flux is negative we conclude that the electric field lines entering the submarine are more than the electric field lines leaving the submarine. Since negative sign implies that flux by negative charges is dominant.

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2 years ago