Answers: 3
Physics, 22.06.2019 07:00
Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?
Answers: 1
Physics, 22.06.2019 22:00
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
An airplane flies 140 miles in 15 minutes. What is its average speed in miles 5 per hour?...
Social Studies, 19.07.2019 02:00
Physics, 19.07.2019 02:00
Business, 19.07.2019 02:00
Social Studies, 19.07.2019 02:00
Physics, 19.07.2019 02:00
Mathematics, 19.07.2019 02:00
Mathematics, 19.07.2019 02:00
History, 19.07.2019 02:00
Mathematics, 19.07.2019 02:00