Atch the humidities with their description. (4 points) 1. humidity of 90% 2. humidity of 80% 3. humidity of 10% 4. humidity of 20% a. reading with the most water in the air b. reading with 80% water in the air c. reading that shows the air could hold 80% more water d. reading with the lowest amount of water in the air

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Where do magnetic lines of force enter earth?