A temperature reading of zero on the Celsius scale is equal to absolute zero. True or False? If False explain why ??
( Subject: Science )
^0^
Answers
is 273 on the absolute scale.
Absolute zero is actually 0 Kelvin.
Absolute zero is = -273°C, and not 0°C.
0 k = -273°C
Related Questions
Drag each statement to the correct location on the chart. Classify the events as being a cause or an effect of pollution. urbanization oil spill smog desertification deforestation leaky landfill contaminated water
Which circuits are parallel circuits?
During which season is the sun highest in the sky? A.springB.summerC.fallD.winter(this is science)
Apr 22, 1:11:18 PMA certain television is advertised as a 20-inch TV (the diagonal length). If the width ofthe TV is 16 inches, how many inches tall is the TV?
Answers
Answers
The subject becomes perhaps a little less confusing when you
look at it from a slightly different angle:
The "year" is not what we print on calendars. The "year" is the
time the Earth takes to complete one revolution around the sun ...
roughly 365-1/4 days.
The moon's revolution is not tied to the Earth's revolution in any
way. The moon does its own thing in its own orbit, and shows a
complete set of "phases" in roughly 29.53 days.
The reason so many cultures have made so many different
calendars is because no calendar can exactly match the sun
and the moon with whole numbers of days, and each calendar
tries to come close, in a different way.
Everybody's calendar does the best it can to fit the year.
And every calendar also has some structure that also goes
along with the moon ... some more closely, and some less.
The Gregorian calendar that we use does a very good job
matching the year, and then the "months" kind of give the moon
some recognition without really trying to match it closely.
The Islamic, Hebrew, and Chinese calendars begin their months
with the New Moon. The Islamic religious calendar ... as
I understand it, but I may be wrong ... is strictly lunar. It simply
begins a new year after 12 complete cycles of moon phases.
That makes the Islamic religious calendar about 11 days shorter
than Earth's revolution around the sun, and is the reason why
you'll notice Ramadan starting earlier every year than it did
the year before.
The Hebrew religious calendar is also strictly lunar, but with a big
additional device that brings it into alignment with the year.
The Hebrew religious months begin right on the New Moon,
so 12 of them are about 11 days shorter than a real year.
Then ... seven times in each 19 years ... the Hebrew religious
calendar adds an extra whole month/moon, and has 13 of them
before the next year is counted. This actually does a great job
of matching up with both the sun and the moon. The system
has been in place for over 2000 years, and it has worked out
such that ... without any special tampering ... Passover and
Sukkot (Tabernacles) always begin on the 15th of the month,
which is always the night of the Full Moon that is nearest the
respective Equinoxes.
By the way ... Most Islamic countries use the Islamic calendar for
prayer and religious applications, and the Gregorian calendar for
trade and business dealings. Israel and other Jewish communities
worldwide use the Hebrew calendar for prayer and religious occasions,
and the Gregorian calendar for trade and business dealings.
Answers
In order to have a volume of 216 ml, the methane have to be compressed at a pressure of 1509 kPa.
Explanation:
This problem is solved by using Boyle's law which states that at constant temperature pressure of a gas is inversely proportional to its volume. It describes how the pressure of a gas increases with a decrease in the volume of a container. The formula is given as,
P1 V1 = P2 V2
where P1 and V1 are first pressure and volume,
P2 and V2 are second pressure and volume.
Given P1 = 503 kPa, V1 = 648 ml, and V2 = 216 ml
P2 = (P1 V1 ) / V2 = (503
648) / 216
P2 = 1509 kPa.
Answers
So you must multiply the magnitude of 15 Newtons by this conversion value to obtain the equivalent magnitude in units of pounds (force):
(15 N)*(0.22480894 N/lbf) = 3.37 lbf rounded to the nearest hundredth
Answers
Explanation:
Consider the example of the electric fan. The electrical energy used in the electric fan is greater than the kinetic energy of the moving fan blades.
According to the law of conservation of the energy, the energy is neither created nor destroyed. It always remains same.
The electrical energy used in the electric fan is also used in the producing unwanted sound energy.
The electrical energy in the electric fan is converted into any unwanted forms of energy. Like in producing unwanted sound energy and the heat energy. If the electric fan shakes then some of the electric energy is converted into unwanted kinetic energy.
Here, the electrical energy changes into sound energy, heat energy and kinetic energy.
the slider is moved towards x
Answers
The rheostat is used to kind of 'spread out' the battery voltage,
you might say. It's like the whole battery voltage is spread out
along the length of the rheostat, and you can connect to any point
you want, from the negative side of the battery (Y) to the positive
side (X), and every point in between, and you get whatever the
voltage is at that particular point.
One side of the light bulb (and the voltmeter) is connected to the
negative side of the battery, and you can't change that.
But the other side of the bulb (and the voltmeter) is connected to
the slider, which can be slid anywhere between 'x' and 'y'.
When the slider is down at 'y', that's the negative side of the battery.
So both sides of the lamp are connected to the same place, there's
no voltage across the lamp, and it just sits there, cool and dark.
When the slider is all the way up at the 'x' end, that's the positive
side of the battery. So the full battery voltage is connected across
the lamp, and the lamp sparkles bright and hot.
When the slider is someplace in between, then only a part of the
full battery voltage is across the lamp (and the voltmeter).
The higher the slider is ... the closer it is to 'x' ... the more voltage
there is across the lamp. The brighter the lamp shines, and the
higher the voltmeter reads.