All categories

3 years ago

How was the age of the Earth determined? (site 1)

1 answer:

8 0

HEllO PAIGE❤️

The age of earth is determined truly by the RADIOCARBON MATHOD . In this method we can find the actuall age of anything having carbon .

Hope it helps you.

You might be interested in

I think you said everything but the answer.

jeka94

Answer:

What does that even mean?

Explanation:

7 0

3 years ago

Read 2 more answers

Best exercises for these topics. <br> (have the amount of exercises, have 4 exercises for each.)

Kipish [7]

Answer:

what is the question?

Explanation:

i dont understand

5 0

3 years ago

Read 2 more answers

Suppose the electric field in some region is found to be E = kr3 ˆr, in spherical coordinates (k is some constant). (a) Find the

Assoli18 [71]

Answer:

Part a)

$\rho = 3\epsilon_0 k r^2$

Part b)

$Q = 4\pi \epsilon_0kR^5$

Explanation:

Part a)

As we know that electric field intensity due to some given charge distribution is given as

$E = kr^3 \hat r$

now electric flux through a spherical surface of radius r is given as

$\phi = E. A$

$\phi = kr^3(4\pi r^2)$

now by Guass law we know that

$E.A = \frac{q}{\epsilon_0}$

$q = 4\pi \epsilon_0kr^5$

now volume charge density is given as

$\rho = \frac{q}{\frac{4}{3}\pi r^3}$

$\rho = 3\epsilon_0 k r^2$

Part b)

Total charge inside the radius R is given as

$Q = 4\pi \epsilon_0kR^5$

7 0

3 years ago

Someone please help? :)

Gnoma [55]

Answer:

(A) $F_N - mg\cos\theta$

Explanation:

The net force perpendicular to the surface of the incline is the sum of the gravity force component, which is mgcos(theta), and the reactionary normal force caused by the surface of the incline. The sum is F_N - mgcos(theta) and is usually 0 which is why the object is not moving perpendicularly to the surface of the incline.

8 0

4 years ago

Explain why chlorine forms a -1 ion, but sulfur forms a -2 ion.

alukav5142 [94]

For a chlorine atom to become a chloride ion, it must gain an electron.The chloride ion has a negative charge and is written as Cl-. Chlorine gains an electron because it has seven valence electrons, and to be a full octet, it gains an electron.

8 0

3 years ago