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?

875 hz or 860 hz
904 hz or 830 hz
878 hz or 856 hz
892 hz or 842 hz

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

The ability to make things happen is also called a. heat b. force c. matter d. energy