Find the time it would take a car going 25 meters per seconds,east, to travel 400 meters per seconds,east
1 answer:
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Answer:
(a) Compression work at the final state with a pressure of 1(MPa) is: 44.32(KJ), (b) Compression work at the final state with a pressure of 500(KPa): 110.37(KJ) and (c) temperaure of the final state in part b: T=151.83(°C).
Explanation:
Remember that the substance is steam so it's water (H2O) and the initial conditions are and
from a saturated water table and the initial conditions we can determine that the state phase is superheated (see Table 1 attached) because the
from the table 1 we get:
. Now we have second conditions as:
so from the same table we can see the state still superheated and we get
, knowing that it's a isobaric process we can find the compression's work as:
so the compressor's work is: 44.32(KJ). (b) Then the piston reaches the stop and there are two processes in this stage, so Process 1 is isobaric and:
and the second process is isochoric:
,now
. Finally to get the temperarure at the final state in part (b) we get:
from table 2 (see attached) we compare
and
at the saturated water table and find the following:
, so we know that the final state phase is a satured mixture and we get the temperature at the final state as:
.
Answer: A. Frequency
B. Wavelength
Explanation: Electromagnetic waves are waves which can travel through the vacuum. Electromagnetic waves have electrical and magnetic component associated with them.
Electromagnetic waves are arranged in order of increasing frequencies or decreasing wavelengths.
Radio waves, X-rays, and gamma rays are all electromagnetic waves which have different wavelengths and thus have different frequencies. But they all travel with the speed of light.
The order of frequency of given waves : gamma rays > X rays> Radio waves.
The order of wavelength of given waves : gamma rays < X rays < Radio waves.
