Answer:
The value is 
Explanation:
From the question we are told that
The power rating of the bulb is 
The frequency is 
The percentage of the input power that is emitted as visible light is 
Generally the amount of power emitted as visible light is mathematically represented as
=> 
=> 
Generally the amount of energy emitted as light is mathematically represented as
Here n is the number of photon , h is the Planks constant with value 
Generally this power emitted as visible light is mathematically represented as
=> 
=> 
=> 
=>
Answer:
The answers are:
a) drinking 20–24 ounces of water for every pound of body mass lost,
b) stretching muscle groups, holding each stretch for 30 seconds or more, and
c) replenishing low blood sugar with carbohydrates
Explanation:
I just took the exam and got this correct.
Answer:
The balloon will collapse
Explanation:
When air is removed from the bell jar, the balloon will collapse if the internal pressure from the balloon does not balance the atmospheric pressure from the surroundings.
Answer:
E = ρ ( R1²) / 2 ∈o R
Explanation:
Given data
two cylinders are parallel
distance = d
radial distance = R
d < (R2−R1)
to find out
Express answer in terms of the variables ρE, R1, R2, R3, d, R, and constants
solution
we have two parallel cylinders
so area is 2 
R × l
and we apply here gauss law that is
EA = Q(enclosed) / ∈o ......1
so first we find Q(enclosed) = ρ Volume
Q(enclosed) = ρ ( R1² × l )
so put all value in equation 1
we get
EA = Q(enclosed) / ∈o
E(2 R × l) = ρ ( R1² × l ) / ∈o
so
E = ρ ( R1²) / 2 ∈o R
Answer:
529.92Newton Meters
Explanation:
Work=force x displacement
8books in total
force is 1.8kg
dispplacement is 4.6cm
times both units by 8 and u get
force - 14,4
displacement - 36.8
now times boht together and u get 529.92nm
