Is this object showing acceleration for the first 2 seconds? explain your answer.

Physics

1 answer:

iVinArrow [24]3 years ago

3 0

Yes. The line is increasing. The flat line at the top of the graph is where there is not acceleration and the decreasing line is deceleration.

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Jackson wants to fit into last year's Halloween costume, but he has been building muscle and has gained a few healthy pounds sin

katrin [286]

It would be A. Because think of the explanations Jasons friend could say to them that would be a negative 'statement'.

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4 years ago

When three identical bulbs of 60W,200V rating are connected in series at a 200V supply the power drawn by them will be?

Law Incorporation [45]

Answer:

P = 180 [w]

Explanation:

To solve this problem we must use ohm's law, which is defined by the following formula.

V = I*R & P = V*I

where:

V = voltage = 200[volts]

I = current [amp]

R = resistance [ohm]

P = power [watts]

Since the bulbs are connected in series, the powers should be summed

P = 60 + 60 + 60

P = 180 [watts]

Now we can calculate the current

I = 180/200

I = 0.9[amp]

Attached is an image where we see the three bulbs connected in series, in the circuit we see that the current is the same for all the elements connected to the circuit.

And the power is defined by P = V*I

we know that the voltage is equal to 200[V], therefore

P = 200*0.9

P = 180 [w]

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3 years ago

Which of the following objects has the greatest density

maks197457 [2]

The density is determined on the steepness of the slope. The greater the density is bases upon the steepest slope. To conclude, I'd say Line A has the steepest slope therefore has the greatest density.

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3 years ago

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Two blocks, stacked one on top of the other, slide on a frictionless horizontal surface. The surface between the two blocks is r

devlian [24]

Answer:

$F_{net} = 31.88 N$