4 years ago

The electrostatic force that describes why charged objects attract to one another is also called ________________.

Physics

1 answer:

STALIN [3.7K]4 years ago

4 0

coulomb's law. inverse square law of e static attraction and/or repulsion

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A car is traveling at vx = 30 m/s . The driver applies the brakes and the car decelerates at ax = -5.0 m/s2 . What is the stoppi

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Answer:

90 m

Explanation:

We use an ecuation of uniformly accelerated motion, which allows us to find the distance traveled by the car from the moment that driver applies the brakes until it stops completely, that is, when its final speed is zero.

$v_{f}^2=v_{o}^2+2ad$

We isolate the variable d, knowing that the final speed $v_{f}$ is zero

$d=\frac{-v_{o}^2}{2a}\\d=\frac{-(30m/s)^2}{2(-5m/s^2)}=90 m$

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3 years ago

On that system is<br> In an isolated system, the net __<br> zero.

DedPeter [7]

Answer:

the net work is 0

Explanation:

in an isolated system, there is no energy entering or exiting the system, and since work is dependent on the change in energy (W = ΔE) , with no change in energy, there is no work done. the net work done on or by the system must be 0

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3 years ago

Two objects are moving at equal speed along a level, frictionless surface. the second object has twice the mass of the first obj

Zarrin [17]

first object gors highest

second object goes lowest.

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3 years ago

If my final exam is worth 30% and my class average is 80, what do I need to get to pass the exam?

kumpel [21]

You haven't told us what the passing percentage is on the exam,
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3 years ago

A greyhound's velocity changes from 10 meters per second to 15 meters per second in 0.5 second. What is the greyhound's average

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The answer would be 10ms 2

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4 years ago