Absolutely True,In 1931 Japan Invaded Northern China %26amp; Captured Manchuria While Italy Under The Leadership Of Benito Mussolini Seized EthiopiaJapan began its aggression by seizing Manchuria; Italy began by seizing Ethopia. True or False?
Yep. Japan changed the name to Manchukwo.
Ethiopia was the last country to be colonised. The italians ended hundreds of years of christian monarchy.Japan began its aggression by seizing Manchuria; Italy began by seizing Ethopia. True or False?
true, Japan renamed Manchuria- Manchukwo. Italy invaded Ethiopia whos leader during the time was Hiley Salasi (aka the lion of ethiopia), i know my WW2...
They both began their aggresion when they built up their armies to an extent like they they were going to invade somebody.
true, but Ethiopia was called Abyssinia then
know your history.
false
false
true
Wednesday, February 10, 2010
1.) An irrational number is a number that is part of the whole number system. True or false?
2.) True or false....The fraction 7/8 is a terminating decimal.1.) An irrational number is a number that is part of the whole number system. True or false?
1. false
whole number = {0, 1, 2, 3, ...}
irrational numbers are numbers such as pi, e which aren't part of the set of whole numbers. They are part of the set of real numbers.
2. true
7/8 = .875 (decimal terminates)1.) An irrational number is a number that is part of the whole number system. True or false?
1) False. A whole number, like 3, can always be written as a ratio like this: 3/1. So, any number that can't be written as a ratio (called an irrational number) can't do what a whole number can do, so it's not a whole number.
2) True. The denominator has only twos and fives multiplied together (8 = 2*2*2), so it will terminate. Numbers like 1/3 don't terminate, since 3 isn't a bunch of twos and fives multiplied together.
1.) FALSE - are NOT whole numbers, they are decimals that neither repeat, nor terminate
2.) TRUE - 7/8 = 0.875
1. false
whole number = {0, 1, 2, 3, ...}
irrational numbers are numbers such as pi, e which aren't part of the set of whole numbers. They are part of the set of real numbers.
2. true
7/8 = .875 (decimal terminates)1.) An irrational number is a number that is part of the whole number system. True or false?
1) False. A whole number, like 3, can always be written as a ratio like this: 3/1. So, any number that can't be written as a ratio (called an irrational number) can't do what a whole number can do, so it's not a whole number.
2) True. The denominator has only twos and fives multiplied together (8 = 2*2*2), so it will terminate. Numbers like 1/3 don't terminate, since 3 isn't a bunch of twos and fives multiplied together.
1.) FALSE - are NOT whole numbers, they are decimals that neither repeat, nor terminate
2.) TRUE - 7/8 = 0.875
Wind turbines are generally designed so that they yield maximum output at 15m/s. True or false?
True. At least for commercial turbines (IE above 1 MW maximum output).
Look for the 'power curve' of a WTG (wind turbine generator). It will show the 'cut-in' speed for the specific generator (typically around 4-5 m/s), the point where it reaches it's maximum (nameplate) output, which typically is around 15 m/s (based on a review of several power curves I have on hand) and the high speed 'cut-out' speed where the WTG shuts down to prevent damage from high winds - around 26 m/s.Wind turbines are generally designed so that they yield maximum output at 15m/s. True or false?
No, it is not true. The generators are specifically designed to deliver a maximum output at the most common prevailing wind speed at the chosen location. If the wind strength is greater, safety mechanisms include feathering the blades (reducing the blade angle).Wind turbines are generally designed so that they yield maximum output at 15m/s. True or false?
I would say false.
They may be designed to give most efficient output around 12-15 miles per hour (not meters per second), because this may be a good average wind speed in windy areas.
However the output will be much greater if the wind speed is higher than 15mph. If you designed a turbine to give maximum output in 15mph winds, what would happen in a 20mph wind?
It's the size of the generator and blade size and blade pitch which can be tuned to wind speeds.
Most wind turbines have blades that automatically adjust pitch, and breaks, like it says above mine.
They are kept at constant RPMs no matter what the wind speed is because the generator needs to be in phase with the grid.
Might be true, as many are designed to cut out at 25 Mp/h+ to prevent damage.
Look for the 'power curve' of a WTG (wind turbine generator). It will show the 'cut-in' speed for the specific generator (typically around 4-5 m/s), the point where it reaches it's maximum (nameplate) output, which typically is around 15 m/s (based on a review of several power curves I have on hand) and the high speed 'cut-out' speed where the WTG shuts down to prevent damage from high winds - around 26 m/s.Wind turbines are generally designed so that they yield maximum output at 15m/s. True or false?
No, it is not true. The generators are specifically designed to deliver a maximum output at the most common prevailing wind speed at the chosen location. If the wind strength is greater, safety mechanisms include feathering the blades (reducing the blade angle).Wind turbines are generally designed so that they yield maximum output at 15m/s. True or false?
I would say false.
They may be designed to give most efficient output around 12-15 miles per hour (not meters per second), because this may be a good average wind speed in windy areas.
However the output will be much greater if the wind speed is higher than 15mph. If you designed a turbine to give maximum output in 15mph winds, what would happen in a 20mph wind?
It's the size of the generator and blade size and blade pitch which can be tuned to wind speeds.
Most wind turbines have blades that automatically adjust pitch, and breaks, like it says above mine.
They are kept at constant RPMs no matter what the wind speed is because the generator needs to be in phase with the grid.
Might be true, as many are designed to cut out at 25 Mp/h+ to prevent damage.
Water freezes at 0 degrees centigrade. True or false?
I'd avoid wikipedia - it's not the oracle.Water freezes at 0 degrees centigrade. True or false?
False. Water freezes when temperature drops below zero. Ice melts when it reaches a temperature of 0 degrees.Water freezes at 0 degrees centigrade. True or false?
This is a silly question. Yesterday it was 27 degree F in MN where I am, and the ice on the ground was melting. Technically, it shouldn't have started until it was 32 degrees out, but the sun was on it, so it was a-meltin' away!
True, but there are other factors, such as humidity, that have an impact on it.
'Centigrade', as a measurement, is based on the properties of water. 0 is freezing point, 100 is boiling point.
True, 0 degrees Centigrade is the same as 32 degrees Farenheit, the temperature at which water freezes.
No it's not true. Also remember that water freeze and boil faster at sea level than higher areas.
True
and it's been happening way too much here this winter.
I live in NC.
True.
True
True
True .....
False. Water freezes when temperature drops below zero. Ice melts when it reaches a temperature of 0 degrees.Water freezes at 0 degrees centigrade. True or false?
This is a silly question. Yesterday it was 27 degree F in MN where I am, and the ice on the ground was melting. Technically, it shouldn't have started until it was 32 degrees out, but the sun was on it, so it was a-meltin' away!
True, but there are other factors, such as humidity, that have an impact on it.
'Centigrade', as a measurement, is based on the properties of water. 0 is freezing point, 100 is boiling point.
True, 0 degrees Centigrade is the same as 32 degrees Farenheit, the temperature at which water freezes.
No it's not true. Also remember that water freeze and boil faster at sea level than higher areas.
True
and it's been happening way too much here this winter.
I live in NC.
True.
True
True
True .....
I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
in your opinion..and why/how?I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
true - a faulty O2 sensor will put the computer into ';limp home'; mode, which is only concerned with not leaving you stranded. Some vehicles will only stay in limp home mode for a limited number of starts, due to EPA demands.
without the O2 sensor signal, the computer is just guessing at the correct air/fuel ratio based on other parameters.I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
False.
It will surly improve your gas mileage if you replace a defective O2 sensor - but not at the overly optimistic figure of 40%.
The O2 sensor ';trims'; the air fuel ratio determined by a look up table in the computer based on numerous vehicle sensor inputs - the key word here is ';trims'; - it does not determine initial or fixed pulse width of the injector - that's determined by the strategy in the computer program.
The computer does not guess at the air/fuel ratio - it is directed to a specific value by several different inputs - the O2 sensor is only one of these criteria - others include the throttle position, coolant and ambient air temperature, engine load and so forth. That's why each PCM is calibrated for a specific vehicle to take into account the many variables such as gear ratios, transmissions, vehicle types, etc.....
true - a faulty O2 sensor will put the computer into ';limp home'; mode, which is only concerned with not leaving you stranded. Some vehicles will only stay in limp home mode for a limited number of starts, due to EPA demands.
without the O2 sensor signal, the computer is just guessing at the correct air/fuel ratio based on other parameters.I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
False.
It will surly improve your gas mileage if you replace a defective O2 sensor - but not at the overly optimistic figure of 40%.
The O2 sensor ';trims'; the air fuel ratio determined by a look up table in the computer based on numerous vehicle sensor inputs - the key word here is ';trims'; - it does not determine initial or fixed pulse width of the injector - that's determined by the strategy in the computer program.
The computer does not guess at the air/fuel ratio - it is directed to a specific value by several different inputs - the O2 sensor is only one of these criteria - others include the throttle position, coolant and ambient air temperature, engine load and so forth. That's why each PCM is calibrated for a specific vehicle to take into account the many variables such as gear ratios, transmissions, vehicle types, etc.....
I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
in your opinion..and why/how?I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
true - a faulty O2 sensor will put the computer into ';limp home'; mode, which is only concerned with not leaving you stranded. Some vehicles will only stay in limp home mode for a limited number of starts, due to EPA demands.
without the O2 sensor signal, the computer is just guessing at the correct air/fuel ratio based on other parameters.I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
False.
It will surly improve your gas mileage if you replace a defective O2 sensor - but not at the overly optimistic figure of 40%.
The O2 sensor ';trims'; the air fuel ratio determined by a look up table in the computer based on numerous vehicle sensor inputs - the key word here is ';trims'; - it does not determine initial or fixed pulse width of the injector - that's determined by the strategy in the computer program.
The computer does not guess at the air/fuel ratio - it is directed to a specific value by several different inputs - the O2 sensor is only one of these criteria - others include the throttle position, coolant and ambient air temperature, engine load and so forth. That's why each PCM is calibrated for a specific vehicle to take into account the many variables such as gear ratios, transmissions, vehicle types, etc.....Cats
true - a faulty O2 sensor will put the computer into ';limp home'; mode, which is only concerned with not leaving you stranded. Some vehicles will only stay in limp home mode for a limited number of starts, due to EPA demands.
without the O2 sensor signal, the computer is just guessing at the correct air/fuel ratio based on other parameters.I read that replacing a faulty oxygen sensor can improve your gas mileage by up to 40%. true or false? ?
False.
It will surly improve your gas mileage if you replace a defective O2 sensor - but not at the overly optimistic figure of 40%.
The O2 sensor ';trims'; the air fuel ratio determined by a look up table in the computer based on numerous vehicle sensor inputs - the key word here is ';trims'; - it does not determine initial or fixed pulse width of the injector - that's determined by the strategy in the computer program.
The computer does not guess at the air/fuel ratio - it is directed to a specific value by several different inputs - the O2 sensor is only one of these criteria - others include the throttle position, coolant and ambient air temperature, engine load and so forth. That's why each PCM is calibrated for a specific vehicle to take into account the many variables such as gear ratios, transmissions, vehicle types, etc.....
When the filament in an incandescent amp gets hot, it gives off ultraviolet light?? true or false?
.....When the filament in an incandescent amp gets hot, it gives off ultraviolet light?? true or false?
False. A filament in an incandescent lamp does not get hot enough to emit UV.
False. A filament in an incandescent lamp does not get hot enough to emit UV.
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