Students created models of the water cycle using empty plastic bottles. Water was placed in the bottom of each bottle, and the top was sealed with a plastic cap. The bottles were then placed in a sunny window in the classroom.
What would best represent the precipitation step of the water cycle in this model?
water drops in the bottle collecting at the top
water drops in the bottle moving down the sides
the amount of water decreasing at the bottom of the bottle
sunlight from the window warming the water at the bottom of the bottle
Answers: 2
Physics, 21.06.2019 19:40
Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.
Answers: 2
Physics, 23.06.2019 01:30
Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the force between the oppositely charged ions.
Answers: 3
Students created models of the water cycle using empty plastic bottles. Water was placed in the bott...
Mathematics, 03.02.2020 09:04
Mathematics, 03.02.2020 09:04
Biology, 03.02.2020 09:04
Biology, 03.02.2020 09:04
History, 03.02.2020 09:04
Mathematics, 03.02.2020 09:04
Mathematics, 03.02.2020 09:04
History, 03.02.2020 09:04
Mathematics, 03.02.2020 09:04