What is the frequency of an electromagnetic wave with a wavelength of 1.0 x 10' m? a. 3.3 x 104 Hz
1.0 x 101 Hz
b. 3.0 x 10 Hz
d. 3.0 x 103 Hz
c.3.0 x 103 Hz

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist