Amicrowave oven operates at 3.00 ghz . what is the wavelength of the radiation produced by this appliance?

Rebekah has a table that has a mass of 21.7 kg. what is the weight of the table? a. 6 n b. 31.5 n c. 9.8 n d. 212.66 n

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.