A tea kettle is used to boil liquid water. When the water is boiling, a whistling sound comes from the kettle. Which provides the best explanation for the sound?
A. The liquid particles are sliding past each other slowly as the temperature increases
B. The gas particles are being pushed below the water at the bottom of the kettle.
C. The gas particles spreading out in all directions are being pushed quickly through a small opening.
D. The liquid particles are moving very quickly to the center of the kettle and pushing any gas particles out of the way.
Answers: 1
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
Physics, 22.06.2019 08:30
What object a collides with object b and bounces back its final momentum is?
Answers: 1
Physics, 22.06.2019 10:30
You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
Answers: 2
A tea kettle is used to boil liquid water. When the water is boiling, a whistling sound comes from t...
Mathematics, 03.02.2020 20:00
Mathematics, 03.02.2020 20:00
History, 03.02.2020 20:00
Geography, 03.02.2020 20:00
English, 03.02.2020 20:00
Chemistry, 03.02.2020 20:00
History, 03.02.2020 20:00
Mathematics, 03.02.2020 20:00
Mathematics, 03.02.2020 20:00
History, 03.02.2020 20:00
Mathematics, 03.02.2020 20:00
Social Studies, 03.02.2020 20:00