For example imagine a cliff near the ocean and the waves keep hitting it thats a landform and erosion happening erosion breaks sediment down
Answer:
The gravitational force between these two objects is around 
Explanation:
The gravitational force can be written as:

Here:
- G is the gravitational constant

- m(1) is the first mass
- m(2) is the second mass
- r is the distance between two bodies.
If we see, the gravitational constant is a very small number, therefore the gravitational force is representative just when we have to massive bodies. Let's suppose that the mass of the pencil is 0.1 kg and the eraser is 0.1 kg too, the distance between them would be around 10 cm or 0.1 m, for instance.
Now let's calculate the gravitational force of these two bodies.
As we see it is very small force, so it is negligible relation to the earth gravitational force. That is why these two objects do not move towards each other.
I hope it helps you!
5 n to the right I think Hope this helps
Answer:
The polarity of electromagnet also gets reversed when the direction of current is reversed. The current flows from negative terminal to positive terminal in an electromagnet due to the flow of electrons so polarity is also established in the electromagnet. As, the current direction is reversed, the polarity of magnet also gets reversed because the polarity of magnet depends on the direction of the current.