Answer:
The energy of each photon is 
Joule.
Step-by-step explanation:
Consider the provided information.
According to the plank equation:
Where E is the energy of photon, h is the plank constant and 
is the frequency.
It is given that 
and 
98Mhz = 
Substitute the respective value in plank equation.
Hence, the energy of each photon is Joule.
Answer:
it has to be 60
Step-by-step explanation:
4 x 15 = 60
A) control group, they did not also survey 10 other ppl who took a placebo
BEDMAS
2^3 + 30 / (10 - 15 / 3)
Do everything in brackets first
First we do 15/3 which is = 5
Then 10 - 5 = 5
Now we have 2^3 + 30 / 5
Next we will do exponents so we simplify 2^3 which is the same as 2×2×2 = 8
8 + 30 / 5
Next we do division so 30/5 = 6
Finally, 8 + 6 = 14
Answer:
B
Step-by-step explanation:
the mean is calculated as
mean = 
this year's mean = 
= 
= 4.1
last year's mean = 
= 
= 3.1
difference = 4.1 - 3.1 = 1
