Two guitars are playing together producing a beat frequency. the first guitar is playing at a frequency of 867 hz and the beat is produced every 0.04 seconds. what are some possible frequencies the other guitar could be playing to make this beat?
a. 875 hz or 860 hz
b. 904 hz or 830 hz
c. 878 hz or 856 hz
d. 892 hz or 842 hz

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity