Apendulum of mass 0.8 kg has 20 joules of potential energy at the top of its path. it’s kinetic energy at the bottom of its swing is:

a.80j
b.20j
c.40j
d.10j

Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.