What is 6.9 × 107 written in standard form? 0.69 0.69 6,900,000 69,000,000

Explanation:

In this case, we have to write in standard form. We can define standard form as the way of writing any number in simplest form.

Here,

On simplification,

So, the given number can be written as

or it can be written in simplest form as 69,000,000

Hence, the correct option is (d) 69,000,000

c) up is the direction the magnetic force is acting on the charge.

that would be because of both gravity and friction. so     c