3 years ago

Describe the structure of an atom.

1 answer:

5 0

A as an atom contains a nucleus where protons and neutrons are present. Electrons orbit the nucleus in paths called orbital

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Which is the process by which a solid changes to a liquid?

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I will Give Brainliest To whoever actually answers A 500 kg satellite experiences a gravitational force of 3000 N, while moving

snow_lady [41]

Answer:

$9.7\times 10^{-4}\ rad/s$

Explanation:

Given:

$m=500 kg\\F=3000 N$

$Radius of earth , R=6371 \times 10^3\ m\\Angular speed =\omega\\We\ know\ that\ \\F= m\times \omega^{2} \times R\\\omega^{2}=\frac{F}{m*R} \\\\=\frac{3000}{500*6371 \times 10^3\ m}$

= $\frac{6}{6371 \times 10^3\ m}$

= $9.7\times 10^{-4}\ rad/s$

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Henry was given this cool toy for his birthday, he can use it to tell how fast someone is moving at that moment in time. The toy

Jobisdone [24]

Speed, the toy can calculate a persons speed

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3 years ago

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pochemuha

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1. 31.5

3. 3.5

Explanation:

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3 years ago

After your school's team wins the regional championship, students go to the dorm roof and start setting off fireworks rockets. T

Nataliya [291]

Answer:

174m

Explanation:

We can calculate the power of the sound:

$P = IA = I \pi R^2 = 1.52\times10^{-6}*\pi*123^2 = 0.0722 W$

For the intensity to be half of I, then the cover area must be

$a = P/(I/2) = 2P/I = \frac{2*0.722}{1.52\times10^{-6}} = 95058 m^2$

Then the distance from the source center to this point is

$a = \pi r^2$

$r^2 = a / \pi = 95058 / \pi = 30258$

$r = \sqrt{30258} = 174 m$

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3 years ago

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