Adouble-slit apparatus is set up so that a screen is positioned 75 cm from the slits and the distance between the two slits is 0.25 mm. what is the width of the cbf?
a. 3.53mm
b. 1.41mm
c. 2.82mm
d. 2.12mm

The consumption of fossil fuels could be

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.