Now, using the following equation Power= Work (AKA Force X Distance) / Time solve the problems below. 1. How much power does a light bulb contain if it does 600J of work in 5 seconds?
2. How much power does a car have that does 2000J of work in 3 seconds?
3. A machine does 30 J of power in 10 seconds, how much power is that?
4. A race car travels 500 meters with 2000 Newtons of force in 50 seconds. What is the car's power?

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

Blank liquids and gases exert a buoyant force on objects placed in them

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.