6.22 KG bowling ball collides head-on with a 1.9 KG bowling ball The pin flies forward with the speed of 2.33 m/s of all continues forward with the speed of 1.12 m/s what was the initial velocity of the ball

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass