18. there are 75 btu. if you need to convert the btu to joules, what number would you use to multiple the btu by?
a. 1.055
ob. 100,055
o c. 10,055
o d. 1,055

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90