What is the approximate momentum of a car with a mass of 1.20*10^ 3 kg and a velocity of 30.0 km/h?

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!