Adriver drives for 30.0 minutes at 80.0 km/h, then 45.0 minutes at 100 km/h. she then stops 30 minutes for lunch. she then travels for 30 minutes at 80 km/h. (a) sketch a plot of her displacement versus time and speed versus time. (b) calculate her average speed

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

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