Acharge q of 7.3 × 10^15 coulomb moves from point a to point b in an electric field. if the potential energy of the charge at point a is 3.5 × 10^-12 joules and that at point b is 1.3 × 10^-12 joules, what is the potential difference between point a and b?

a. 1.3 × 10^2 volts
b. 3.0 × 10^2 volts
c. 3.5 × 10^3 volts
d. 6.8 × 10^3 volts

Ineed the answer to question 1 , i’m desperate

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?