The pitch of a sound is most closely related to the
a. frequency of vibrations.
b. distance from the sound source.
c. medium through which the sound travels.
d. intensity of the sound

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Which accurately compares concave and convex lenses?