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an appliance cord is consist of two wires, about 2m long with individual wire which is about 3mm apart and carry a current of 8A DC. calculate the force exerted by the wires.
protons in a uniform magnetic field 0f .3 T follow a circular trajectory with 20 com radius. determine the speed of protons. ( q = 1.6 x 10^-19 and m = 1.673 x 10^-27 K )
Pipette 1 drop of aqueous solution of phenol into a test tube and add 3 drops of 2 N
NH4OH, then add 3 drops of saturated of bromine water. In a few seconds you will
observe blue color indicating to the formation of indophenol. Describe your
observation and write all reaction equations.
The heights of 1,000 college students are normally distributed about a mean value of 170 cm. The standard deviation is 7.2 cm. What is the probability of selecting a students smaller than 158 centimeters.
Consider two normalized eigen functions ψ1 and ψ2 , corresponding to the same eigen value. If
∫ψ∗1ψ2dτ=d ,
where d is real
Find a normalized linear combinations of ψ1 and ψ2 that are orthogonal to
(a) ψ1
(b) ψ1+ψ2
Note: The coefficients of the linear combinations need not be real
A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds.If acceleration due to gravity is 10m/second-2.The power expended is???
The marginal cost function of a firm is 2 + 3e^x Find the
total and average cost functions if the fixed cost is Rs. 500.
A ball of mass 8kg falls from a height of 100m . Neglecting air resistance, calculate its total energy after falling a distance of 40m
1. A uniform electric field E = 6500 N/C passing through a flat square area
A = 10m2
. What is the electric flux?
Determine the possible values of the random variable in drawing 2 balls without replacement from a box containing 3 red balls (R), 1 blue ball (B), and 2 green balls (G). Let X be the number of red balls selected.
