Physics, 21.01.2021 23:20 shaffergabe10
Use the chart below to answer the following questions.
5. Which list includes the phase changes that require a loss of energy (heat)?
Sublimation
a. sublimation and deposition
b. condensation, freezing and deposition
c. freezing and melting
d. melting, vaporization and sublimation
6. Which phase of matter has a definite volume and shape.
Melting
Vaporization
Freezing
Condensation
a solid
b. liquid
c. gas
d. plasma
SOLID
LIQUID
GAS
Deposition
7. Which phase changes require a gain of energy (heat)?
a. melting and freezing
b. sublimation and vaporization
C. vaporization and condensation
d. sublimation and deposition
Answers: 1
Physics, 22.06.2019 03:30
Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)
Answers: 1
Physics, 22.06.2019 04:30
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
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 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
Use the chart below to answer the following questions.
5. Which list includes the phase changes tha...
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