3 years ago

SOME PLEASE HELP ME RN IS AN EMERGENCY

Physics

1 answer:

Burka [1]3 years ago

3 0

The answer is B positive

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A watermelon is dropped from the top of a 80m tall building. We want to find the velocity of the watermelon after it falls for 1

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Answer:

$v_f = v_i + at$

$v_f = 13.23 m/s$

Explanation:

Height Of the watermelon when it is dropped is given as

$h = 80 m$

time of fall under gravity

$t = 1.35 s$

now if water melon start from rest then we have

$v_i = 0$

acceleration due to gravity for watermelon

$a = 9.81 m/s^2$

now we need to find the final speed of watermelon

$v_f = v_i + at$

so we will have

$v_f = 0 + (9.81)(1.35)$

$v_f = 13.23 m/s$

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The presence of which phenomenon proved the predictability of the big bang theory?

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Pre-Test Active

vlada-n [284]

n is the answer I guess

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2 years ago

PLEASE !! Help

n200080 [17]

Answer:

scalar,magnitude

Explanation:

scalar is an example of length/distance

magnitude is the length of a vector

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