The answer would be
C) To reduce destruction by providing early warning of severe weather

This can help us because then we can plan our day-to-day activities better and can definitely help keep us out of danger.

7 0

3 years ago

What is the energy of a photon with the frequency of 1.02 x 1015 Hz?<br> Please show your work!

galben [10]

<span> E = h v where v = frequency h = plancks constant 6.626 * 10 - 34

4.8 * 6.626 = 31.8 </span>

7 0

3 years ago

The final charge on each of the three separated spheres in part (b) is +3.0 μC. How many electrons would have to be added to one

marishachu [46]

Answer:

$1.873\times 10^{13}$ electrons should be added to one of these spheres to make it electrically neutral.

Explanation:

Total charge on each sphere = +3.0 μC = $3\times 10^{-6} C$

$1 \mu C=10^{-6} C$

In order to neutralize the positive charge equal magnitude of negative charge is to be added.

Total charge electrons, Q= -3.0 μC = $-3\times 10^{-6} C$

Number of electrons = n

Charge on a single electron, e = $-1.602\times 10^{-19} C$

Q = n × e

$-3\times 10^{-6} C=n\times (-1.602\times 10^{-19} C)$

$n=\frac{-3\times 10^{-6} C}{-1.602\times 10^{-19} C}=1.873\times 10^{13}$

$1.873\times 10^{13}$ electrons should be added to one of these spheres to make it electrically neutral.

4 0

3 years ago

What are ionic compounds

musickatia [10]

Ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding

5 0

3 years ago