Physics Measurements Level: Misc Level
The number of significant figures in .40 is:5,3,2,4,1
Physics Measurements Level: Misc Level
The meter is currently defined:By a platinum bar kept in the national bureau of standards, as the distance from the equator to the pole, by a standard metal bar kept in Paris France, by the distance light will travel in a certain time.
Physics Measurements Level: Misc Level
What is the percent error in the measurement of 23+-1 m3?
a.43%
b.0.4%
c.4%
d.23%
Physics Measurements Level: Misc Level
The significant in 0.080 kg is:
a. 3
b.4
c.2
d.1
Physics Measurements Level: Misc Level
A temperature of -162% C corresponds to:
a. -111 K
b.162 K
c. -162 K
d.111 K
Physics Measurements Level: Misc Level
A constant volume gas thermometer is calibrated In dry ice (-80.0 degrees Celsius) and in boiling ethyle alcohol (78 degrees Celsius.)The respective pressures are 0.900 atm and 635 atm.
a) what value of absolute zero does the calibration yield.
b) what pressures would be found a the freezing and boiling points of water?
Physics Measurements Level: Misc Level
the number of significant figures in 2.00 x 10^-5 m is? it should say 10 to the negitive 5th power
Physics Measurements Level: Misc Level
volume of a cylinderical tank is calculated by measuring its radius as 3m with a maximum error of +-1.5% and the height as 5m with a maximum error of +- 1% the volume of the tank is?
Physics Measurements Level: Misc Level
measurement is recorded as 2+0.1 the relative error is ? the + and are suppose to be right over each othered
Physics Measurements Level: Misc Level
A raindrop,s diameter changes from one micrometer to one millimeter. lts diameter has increased by a factor of
10 100 1000 100000
Physics Measurements Level: Misc Level
A few years ago, Cadillac announced the use red LEDs( wavelength~ 680 nm) instead of conventional bulbs with filaments for brake lights.The manufacturer claimed that because of their faster turn-on time, the stopping distance of a car following this new Cadillac could be reduced by up to 17 feet at 60 miles/hour. If this is so , what is the difference in the turn on time between the LED and the incandescent bulb that it replaced?
Physics Measurements Level: Misc Level
A 15-ft tall street -lamp shines out to an angle of 27 degrees from the vertical in all directions. What is the total area illuminated?
Physics Measurements Level: Misc Level
A student has a car that gets, on average, 25.0 mi/gal of gasoline. She plans to spend the a year in Europe and take the car with her.
a. What should she expect the car s average gas mileage to be in kilometers per liter?
b. During the year there, she drove 6000 km. Assuming that gas costs $5. 00/gal in Europe, how much did she spend on fuel? ( Compute to the nearest dollar)
Physics Measurements Level: Misc Level
Which two temperature changes are equivalent?
(a) 1 degree F=1 degree C
(b) 1 degree C= 1 K
(c) 1 K =1 degree F
Physics Measurements Level: Misc Level
What is the Kelvin equivalent of 37 o F?
