How long does it take electrons to get from a car battery to the starting motor? Assume the current is 300 A and the electrons travel through a copper wire with cross-sectional area 0.250 cm2 and length 0.900 m. The number of charge carriers per unit volume is 8.49 × 1028 m-3.

16.98 minutes

Explanation:

We are given that

Current,I=300 A

Area, A=0.250 square cm=

Length of wire,d=0.9 m

Number of charge carriers per unit volume=

We know that

Using the formula

the reason is because the moon has some form of gravity, and that gravity pulls the ocean tides.

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.