Explanation:
Given that,
Wavelength of the light,
Work function of sodium,
The kinetic energy of the ejected electron in terms of work function is given by :
The formula of kinetic energy is given by :
Hence, this is the required solution.
What is the average power consumption in watts of an appliance that uses 5.00 kWh of energy per day? How many joules of energy d
1 answer:
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Answer:
2023857702.507m
Explanation:
recall from newton's law of gravitation
G=gravitational constant
mshew=50g
melephant=5*10^3kg
rearth=radius of the earth 6400km or 6400000m
mearth= masss of the earth
Gm(shrew)m(earth)/r(earth)^2 = Gm(elephant)m(earth)/r^2
strike out the left hand side and right hand side variables
m(shrew)/r(earth)^2 = m(elephant)/r^2
r^2 = m(elephant).r(earth)^2 / m(shrew) .........make r^2 the subject of the equation
r^2=
r^2=40960000000000
r=2023857702.507m