Answer:
E = 401.3 eV
Explanation:
As we know that the thinnest gap in the direction of metal is given as
so here we can say that lowest energy of photon will not able to break this electron from above thickness
so we will have
here we have
also we have
so we will have
Answer:
640 J
Explanation:
ΔKE = KE − KE₀
ΔKE = ½ mv² − ½ mv₀²
ΔKE = ½ m (v² − v₀²)
ΔKE = ½ (80 kg) ((5 m/s)² − (3 m/s)²)
ΔKE = 640 J
Her kinetic energy increases by 640 J, so she does 640 J of work.
Answer:
Explanation:
Given data
Speed v=2650 km/h
Radius r=85.0 km
To find
Centripetal Acceleration
Solution
As centripetal acceleration is given as
where
v is velocity
r is the radius
Substitute the given values in eq(i)
Answer:
How many decimal places did you use when you measured the mass of each square of aluminum? Which places were exact, and which were estimated? Three decimal places were used.Explanation:
<span>Usually alto-cumulus and alto-stratus are clouds that have been slowly lifted by the very slack slope of a warm front. The normal progression of this type of weather is to see the ceiling to go down, drizzle to happen, the wind to increase and dark nimbostratus and cumulonimbus full of rain or snow.
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