Displacement vs Distance Question #1: Alli rides her scooter 50 yards east down the sidewalk from her house. Then, she turns around and rides her scooter the 25 yards back west to her friend’s house. What is the total distance, and what is the total displacement? ■ Total distance = ■ Total displacement =

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

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.

What is the measurement of how fast an object moves relative to a reference point?