Answer:
E = 2.5 x 10⁻¹⁴ J
Explanation:
given,
diameter = 1.33 x 10⁻¹⁴ m
mass = 6.64 x 10⁻²⁷ kg
wavelength is equal to diameter
de broglie wavelength equal to diameter
v = 7.5 x 10⁶ m/s
Kinetic energy is equal to
E = 2.5 x 10⁻¹⁴ J
Answer:
Time, t = 2 minutes
Explanation:
Given that,
Length of Duplain st. d = 300 m = 0.3 km
If keith is strolling east from Baron at an average velocity of, v = 3 km/hr
Sue is power-walking west from Burkey at an average velocity of, v' = 6 km/hr
To find,
How long will it take them to meet ?
Solution,
When both objects are travelling in opposite direction, then the total speed is given by :
V = v + v'
V = 3 km/hr + 6 km/hr
V = 9 km/hr
Let t is the time taken will it take them to meet. It can be calculated as :
t = 0.033 hour
or
t = 1.98 minutes
i.e. t = 2 minutes
So, they will take 2 minutes to meet. Hence, this is the required solution.