Determine what will be the photoelectric stopping potential
The threshold wavelength in the photoelectric experiment is found to be 500 nm. Determine the work function? Determine what will be the photoelectric stopping potential if 300 nm UV radiation hits the surface?
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A researcher claims that the average yearly consumption of bottled water in Canada is equal to 27 litres per capita. In a sample of 50 randomly selected Canadians, the mean yearly consumption of bottled water was 29.3 L. The standard deviation of
It has been recommended that if a concert is broadcast so that it can be seen on TV, persons viewing the concert at home (possibly miles away) might in reality listen to the sounds before a person who in reality attends the concert. Is this possib
Ten years ago the average farm size in Ontario was 81 ha. The standard deviation of the population was 7 ha. A recent study consisting of 22 Ontario farms showed that the average farm size was 83.9 ha.
A certain automobile engine is functioning work at the rate of around 33850 W (45 hp) with the efficiency of 26%. Determine at what rate is heat being expelled through the engine?
Let differential equation dy/dx=6x, with intial condition y(0)=2. Use Euler's method with 2 steps to find y when x=1: y(1)=? Now use 4 steps: y(1)=?
When Planck’s constant was 6.63 J•s (rather than 6.63 x 10-34J•s) determine what would be the wavelength of a football (having mass = 400 grams) kicked at 25 m/s? Determine what would be the minimum uncertainty in its position as c
The magnification of the object is around -3.0. Is the image on the similar side of the mirror as the object? Is the image virtual or real? Is the image upright or inverted? Is the mirror concave or convex? Describe your reasoning.
A tall object of around 4.5 cm is positioned 26 cm in front of the spherical mirror. You want to generate a virtual image which is upright and 3.5 cm tall. (i) What kind of mirror (concave or convex) must be employed?
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