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

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

When does your body conduct current more readily?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.