Acertain sound contains the following frequencies: 400 hz, 1600 hz, and 2400 hz. select the best description of this sound. a. this is a pure tone. b. this is a complex tone with a fundamental of 400 hz, plus some of its overtones. c. this is a complex tone with a vrtual pitch of 800 hz d. these frequencies are unrelated, so they are probably pure tones from three different sound sources.

Time remainin52: 42the chart shows data for a moving object.which conclusion is best supported by the information inthe chart? time (s)velocity (m/s

Ascientific blank must be testable and capable of being proven false?

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?