A microwave oven cooks food by emitting electromagnetic waves with a frequency of about 2.45 × 109 Hz. What is the wavelength, in centimeters, of these wave

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?