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Elena-2011 [213]

3 years ago

10

You accidentally drop an eraser out of the window of an apartment 15 m above the ground

1 answer:

docker41 [41]3 years ago

3 0

Answer:

hello, yes or nou sorry jaja

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Two whistles blow at the same time. The first whistle has a frequency twice that of the second whistle (it is a higher pitch). W

suter [353]

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the first one

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You are trying to find the amount of heat transferred between two substances. In order to do this, you plan

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i am a 14 year old girl

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2 years ago

Ran 300 meter in 40 seconds, what is the speed?

nignag [31]

Answer:

7.5

Explanation:

Speed= distance/ time

Speed= 300m/40sec

Speed= 7.5m/s

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3 years ago

A device for acclimating military pilots to the high accelerations they must experience consists of a horizontal beam that rotat

Natali [406]

centripetal acceleration is given by formula

$a_c = \omega^2*R$

given that

$a_c = 34.1 m/s^2$

$R = 5.91 m$

now we have

$\omega^2 R = 34.1$

$\omega^2 * 5.91 = 34.1$

$\omega^2 = 5.77$

$\omega = 2.4 rad/s$

so the ratationa frequency is given by

$\omega = 2 \pi f$

$2.4 = 2 \pi f$

$f = \frac{2.4}{2\pi}$

$f = 0.38 Hz$

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3 years ago

g A 475-gram ball is traveling horizontally at 12.0 m/s to the left when it is suddenly struck horizontally by a bat, causing it

AlexFokin [52]

Answer:

7.64 ms

Explanation:

3 0

3 years ago