Determine how the mechanical advantage of a ramp changes as the ramp becomes longer

A speaker's frame of reference and a listener's frame of reference will never be exactly the same. a. True b. False

A colour television has a power rating of 150 watts. how much electrical energy does it use when you forget to turn it off for 4 hours?

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. the square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.

What effect, if any, does the development of new areas of science and technology have on theories?

Compare how pressure and temperature change with depth inside Earth.

How long did it take to reload a rifle during the 18th 19 century?

Oil flows upward in the wick of a lantern because of the liquid property called A. meniscusity. B. capillarity. C. density. D. viscosity.

A high-mass star has more "fuel" than a low-mass star. which lives longer? why?

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

Suppose you want to know if the color of peoples hair affects how warm it can keep their heads. describe the skills you would use to conduct an experiment to test your inquiry