3 years ago

Please help very easy 5th grade work giving brainliest

Physics

1 answer:

zhenek [66]3 years ago

8 0

Answer:

the answer is option B because opposit sides of the magnets attract each other

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What is the velocity of an object that has been in free fall for 1.5s?

Crank

Answer:

D. 15 m/s downward

Explanation:

v = at + v₀

v = (-9.8 m/s²) (1.5 s) + (0 m/s)

v = -14.7 m/s

Rounded to two significant figures, the answer is D, 15 m/s downward.

8 0

3 years ago

Answer for a thanks

mariarad [96]

Well, if your question is how light affects plants,

then you would want to design an experiment that plays aruond with the amount of light a plant gets

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3 years ago

The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs func

Kitty [74]

Answer:

α = 0.0135 rad/s²

Explanation:

given,

t = 133 min = 133 x 60 = 7980 s

angular speed varies from 570 rpm to 1600 rpm

now,

570 rpm = $570 \times \dfrac{2\pi}{60}$

= 59.69 rad/s

1600 rpm = = $570 \times \dfrac{2\pi}{60}$

= 167.6 rad/s

using equation of rotational motion

ωf = ωi + αt

167.6 = 59.7 + α x 7980

α x 7980 = 107.9

α = 0.0135 rad/s²

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3 years ago

NEED ANSWERS FAST! WHICH ONE IS IT?! ?!

kow [346]

I used to wish that I can fly

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3 years ago

If two students push a box with a force of 3N in the same direction, and there is no other unbalanced force on the box, what is

FrozenT [24]

It’s 9N because unbalanced force on the box

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3 years ago

Read 2 more answers