Recent content by sunshinedaydream

...fork? (include 5 places past? A tuning fork has a frequency of 270 Hz. What is the period of vibration of this fork? (include 5 places past decimal)

guitar produces 4 beats per sec? If one guitar string is tuned to a frequency of 300 Hz and a string on another guitar produces 4 beats per second when played together with the first string, what are the possible frequencies of the second string? (Select all that apply.) a.300 Hz b.302 Hz c.308...

mi/hr). The tires on Harry's bike are? Harry and Sue are riding their bicycles together(both are going about 15 mi/hr). The tires on Harry's bike are larger diameter than those on Sue's bike. Which of the following statements are true about the tires on Harry's and Sue's bikes? Choose all that...

5.0 m in order to place it upo? A box with a mass of 10 kg is lifted (without acceleration) through a height of 5.0 m in order to place it upon the shelf of a closet. (a) What is the increase in potential energy of the box? ___ J (b) How much work was required to lift the box to this position...

A binary system is composed of two stars. The stars are found to orbit each other in 31.1769 years with an average distance of 18 AU. What is the total mass of the system? ____solar masses Star A is found to orbit at a distance of 15 AU from the center of mass and star B orbits at a distance of...

If a star has a parallax of 0.04 second of arc, what is its distance in parsecs? ________pc What would that distance be in light-years? _______lys What would that distance be in Astronomical Units ________AUs ---------------AU