Answer:
Answer is 519.3 J
Explanation:
GPE = m x g x h
Object Height is equal to 7.2 x sin42 = 7.2 x 0.669 = 4.817m
GPE = 11 x 9.8 x 4.817 =519.3 J
Most probably m value (11kg) has been used as 7.2 mistakenly.
Answer:
t = 23136 years old
Explanation:
The intensity of radiation obeys the exponential decay law.
(1)
Here:
λ is the radiation decay constant.
I is the intensity of radiation after t time.
I₀ is the initial intensity of radiation.
t is the time
Now, we know that the intensity of radiation is a 6% of what it would be in a freshly cut piece of wood, in other words:
(2)
Combining (2) with (1), we have:
(3)
Now, we just need to solve (3) for t.
(4)
and (5)
is the half-life.
In our case, we have ¹⁴C, so the
Finally, we can find t putting (5) in (4):
I hope it helps you!
Answer: The answer is A
Explanation: There is a strong relationship between them because if you get more sleep then you will have more energy and focus more on the exam.
Answer:
my name is Deepika Pandey anion I am 9 years old my father name is Dinesh Pandey my name is and my sister name is sister name is a