Telephone signals are often transmitted over long distances by microwaves. what is the frequency of microwave iradiation with a wavelength of 3.50 cm

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils