Answer: The electric repulsion between the two protons is stronger than the gravitational attraction.

Explanation: Please see the attachments below

**Answer:**

One way to test the hypothesis is to create two waves, one in the air and one on the ground at the same time. One of them for the elephant to get closer and another for the elephants to move away. Observe the reaction of the animal and with this we know which sound came first.

**Explanation:**

This hypothesis is based on the fact that the speed of sound in air is v = 343 m / s with a small variation with temperature.

The speed of sound in solid soil is an average of the speed of its constituent media, giving values between

wood 3900 m / s

concrete 4000 m / s

fabrics 1540 m / s

earth 5000 m / s wave S

ground 7000 m / s P wave

we can see that the speed on solid earth is an order of magnitude greater than in air.

One way to test the hypothesis is to create two waves, one in the air and one on the ground at the same time. One of them for the elephant to get closer and another for the elephants to move away. Observe the reaction of the animal and with this we know which sound came first.

From the initial information, the wave going through the ground should arrive first.

As an object falls toward earth, the potential energy of the object : Decreases

Here's the formula for the Potential energy :

E = Em + Ek + Eg

m = mass

= k kinetic

g = gravity

As the potential energy falls toward earth, the Eg became 0, which will decrease its amount

C.) a magnetic field is the correct answer…

Answer: 6.4 x 10^14Hz

Explanation:

velocity of blue light (V) = 3.0 x 10^8m/sec

wavelength (λ) = 465 nanometers

(4.65 x 10?m)

Since 1nanometer = 1 x 10^-9 meter

465 nanometer = 4.65 x 10^-7 meters

frequency (F) = ?

Recall that the frequency of a wave is the number of cycles the wave complete in one second, and its unit is Hertz.

So, apply the formula V = F λ

3.0 x 10^8m/sec = F x 4.65 x 10^-7 meters

F = (3.0 x 10^8m/sec / 4.65 x 10^-7 meters)

F = 6.4 x 10^14Hz

Thus, the frequency of the blue light is 6.4 x 10^14Hz