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uranmaximum [27]

3 years ago

15

If the atoms of one object (initially neutral) have electrons rubbed off through friction with a second object, the first object

becomes---?

1 answer:

snow_lady [41]3 years ago

4 0

Positive. The 1st object loses electrons and will thus have an imbalance of charge with loss of electrons.

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How do I calculate the frequency of an observer

Alja [10]

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If the observer is moving away from the source ((Figure)), the observed frequency can be found: λs=vTo−voTovTs=(v−vo)Tov(1fs)=(v−vo)(1fo)fo=fs(v−vov).

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3 years ago

You and a friend each carry identical boxes from the first floor of a building to a room located on the second floor, farther do

melamori03 [73]

Answer:

Work done in both the cases will be same

Explanation:

As we know that the work done against gravity is given as

$W = F_g .d$

here we know that gravitational force is a conservative force and the work done against gravitational force is independent of the path

So here the work done by person to move the object between two different heights will be independent of the path they choose

So for the first person and second person will be same in both the cases because the height through which the boxes are transferred will be same in both the cases

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3 years ago

If two negative charges decrease 1/2 times it's original charge then the force will become how many times stronger

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3 years ago

If the same fish is attached to the end of the unstretched spring and then allowed to fall from rest, through what maximum dista

andrew11 [14]

Answer:

x=2d

Explanation:

initial stretch in the spring is d

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k×d=mg

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d=mg/k ................ (1)

in second case by energy conservation

1/2 kx^2=mgx

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using equation 1

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