A family travels for 60 miles at 20 miles per hour on a dirt road, and then travels another 60 miles at 60 mph on the pavement in order to get home from a camping trip. What is the average speed for the entire trip?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

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?

Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate