Question 3 of 10
The economic problem created by people having unlimited wants and limited
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Answers: 1
Physics, 21.06.2019 14:30, squawk1738
What is the approximate amplitude of this wave a.10 seconds b.15 centimeters c.30 centimeters d.15 seconds
Answers: 1
Physics, 22.06.2019 22:00, jerry7792
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
Physics, 23.06.2019 05:10, CadenSkinner2003
An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror
Answers: 2
Mathematics, 25.11.2021 09:50
Mathematics, 25.11.2021 09:50