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Flauer [41]
2 years ago
5

How to contact brainly

Physics
2 answers:
LekaFEV [45]2 years ago
7 0

Answer:

go and rate brainly you can get question them

nevsk [136]2 years ago
5 0

Answer:

Go to your play store and rate their app

If you have any problem u can even mention that while you are rating them

I am sorry if I said anything wrong

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The rate (in cubic feet per hour) that a spherical snowball melts is proportional to the snowball's volume raised to the 2/3 pow
Darina [25.2K]

Answer:

A 3 feet radius snowball will melt in 54 hours.

Explanation:

As we can assume that the rate of  snowball takes to melt is proportional to the surface area, then the rate for a 3 feet radius will be:

T= A(3 ft)/A(1 ft) * 6 hr

A is the area of the snowballs. For a spherical geometry is computing as:

A=4.pi.R^2

Then dividing the areas:

A(3 feet)/A(1 foot) = (4 pi (3 ft)^2)/(4 pi (1 ft)^2) =  (36pi ft^2)/(4pi ft^2)= 9

Finally, the rate for the 3 feet radius snowball is:

T= 9 * 6 hr = 54 hr

6 0
3 years ago
The diagram shows particles that make up an atom. Which label best completes the diagram?
KonstantinChe [14]
The right answer is "Strong nuclear force"
8 0
3 years ago
Two people are talking at a distance of 3.0 m from where you are and you measure the sound intensity as 1.1 × 10-7 W/m2. Another
ioda

Answer:

6.1875\times 10^{-8}

Explanation:

Assuming uniform spread of sound with no significant reflections or absorption. We know that sound intensity varies I=\frac {k}{r^{2}} where r is the distance

Since intensity is given then when at 3 m

1.1\times 10^{-7}= \frac {k}{3^{2}}

k=3^{2}\times 1.1\times 10^{-7}= 9.9\times 10^{-7}

Since we have the constant then at 4m

Intensity, I= \frac {9.9\times 10^{-7}}{4^{2}}=6.1875\times 10^{-8}

8 0
2 years ago
We know that a ship, even though it is madeup of tonnes of iron, floats on water. How do you feel about the scientists who found
slamgirl [31]
I feel admiration and respect for them, and I feel grateful and humble.
3 0
3 years ago
Which two phrases describe the nature of the strong nuclear force? O A. Is an example of a contact force B. Acts as a result of
butalik [34]

Answer: C and D

Explanation:

8 0
3 years ago
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