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oksano4ka [1.4K]
3 years ago
6

Your friend claims that weather predictions are just guesses. What would you say to change your friend's mind?

Physics
1 answer:
VashaNatasha [74]3 years ago
4 0
To change my friends mind, after they've already said weather predictions are just guesses, I would say they are correct, but not only to they use guesses to predict what will happen, but they also, before hand, use atmospheric tools. They then predict from the data collected. They do both.
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A 4.80 Kg watermelon is dropped from rest from the roof of an 18.0 m building. Calculate the work done by gravity on the waterme
Nonamiya [84]

Answer:

Work, W = 846.72 Joules

Explanation:

Given that,

Mass of the watermelon, m = 4.8 kg

It is dropped from rest from the roof of 18 m building. We need to find the work done by the gravity on the watermelon from the roof to the ground. It is same as gravitational potential energy i.e.

W = mgh

W=4.8\ kg\times 9.8\ m/s^2\times 18\ m

W = 846.72 Joules

So, the work done by the gravity on the watermelon is 846.72 Joules. Hence, this is the required solution.

7 0
3 years ago
A man walks 30 m to the west, then 5 m to the east in 45 seconds.
katen-ka-za [31]

Answer:

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b. Total distance=30m+5m=35m

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ddd [48]

Answer:

potential energy increases.

Explanation:

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U = k Q q / r

If they are very far apart then r tends to infinity and the potential energy is zero.

If they come closer then the potential energy between the two charged particles increases.

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Congugar verbos en primera persona del singular
stira [4]
This is Spanish !!!!
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You run 100 meters in 50 seconds. Calculate your speed, label with m/s
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Answer:

2 m/s

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