Which is the frequency of the graph shown? A) 20 Hz
B) 110 Hz
C) 50 Hz
D) 0.02 Hz
E) 0.05 Hz

Why do astronauts in the space shuttle weigh less?

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Which describes an object in projectile motion? check all that apply. a.gravity acts to pull the object downb. the object moves in a straight path. c.the forward velocity of the object is 0 m/s. d.the object’s inertia carries it forward. e.the path of the object is curved.