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vovangra [49]
3 years ago
9

HURRY! PLEASE HELP!!!! 3. What methods are you using to test this (or each) hypothesis?

Physics
2 answers:
Soloha48 [4]3 years ago
6 0

Answer:

It is obvious you are cheating on a test because it is obvious you are on a time crunch pls do not abuse the honor roll rule chart you can be banned if they found out

Explanation:

Neko [114]3 years ago
3 0

Answer:

To test this theory I used balls and measured their mass, volume, density, and the amount of displaced water or how much a tube would be filled up if the ball was placed inside.

For Example:

In the experiment where I used Table B, I filled a bucket up with water and predicted whether or not an inflated football would float if I put it in the water, then I measured the amount of displaced water from putting the inflated football in the bucket, which was 4000 mL. Then I did the exact same thing but with a deflated football, the amount of displaced water was 500 mL.

 

Explanation: This is the answer I put on edg

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a person does 100 joules of work in pulling back the string of a bow. what will be the initial speed of a 0.5 kg arrow when it i
eduard

If all the energy she put into bending the bow is completely
transmitted to the arrow, then the arrow has the 100 joules
of kinetic energy when it leaves the bow.

                 Kinetic energy = (1/2) (mass) (speed)²

                         100 J        = (1/2) (0.5 kg) (speed²)

Divide each side by 0.25 kg:    100 J / 0.25 kg = speed²

 [ joule ] = [ newton-meter ] = kg-m²/sec²

                                                100 kg-m²/sec² / 0.25 kg = speed²

                                                 400 m²/sec² = speed²

Take the square root of each side:     speed = √400 m/s

                                                                                20 m/s

                                                                    (about 44.7 mph)                                           

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If the sun in 148 million kilometers from the earth, how many minutes will it take the light from the sun to reach the earth?
Natasha2012 [34]

Answer:

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Explanation:

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