A student places his hand in front of a plane mirror as shown in
the diagram. Which terms correctly describe the image that the
mirror forms?
A true orientation, inverted, and virtual.
B reversed orientation, erect, and virtual.
C reversed orientation, erect, and real.
D true orientation, inverted, and real.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.