Answer:
Potential energy is
Explanation:
The potential energy depends on the mass, the acceleration of gravity g and the height at which the object or person is.
Potential energy
In this case we would need to know the exact mass of the hiker in order to calculate the potential energy.
But we know the values of g and h
So, the potential energy
m is the mass of the hiker, wich is not in the description of the problem.
Answer:
it equals 53 miles per hour
Answer:
a)n=0.5 mol
b)n=0.5 mol
c)U/Q=0.714
Explanation:
Given that
Mass of oxygen m= 16 g
Heated from 26.4°C to 111°C
Molar weight M=32 g/mol
a)
Number of mole,n
n=m/M
n=16/32 mol
n=0.5 mol
b)
Heat,Q
Q= n Cp ΔT
As we know that it is diatomic gas so
Cp=(7/2)R
Q=7 R n ΔT/2
Now by putting the values
----1
Q=1230.88 J
We know that internal energy
--------2
From equation 1 and 2
U/Q= 5/7
U/Q=0.714
You can easily tell by shaking the envelope by making the sheets inside it overlap then flip it around then start feeling then you can feel 4 sheets
The amplitude of the electric field in a plane electromagnetic wave is 100 v/m then the amplitude of the magnetic field is 3.34×.
<h3>What is an Electromagnetic wave?</h3>
Electromagnetic waves, or EM waves, are produced by the oscillations of an electric field and a magnetic field. In other words, electromagnetic (EM) waves are created when magnetic and electric fields oscillate.
Electromagnetic waves are produced when an electric field and a magnetic field interact. They are referred to as "electromagnetic" waves as a result. The electric field and magnetic field of an electromagnetic wave are perpendicular to one another (at right angles). They are also parallel to the direction of the EM wave.
According to the question,
Electric Field, E₀= 100 v/m and,
B₀/E₀=1/c
The amplitude of the magnetic field will be :
B₀=E₀/c
=100/(3×)
B₀=3.34×
Hence, the amplitude of the magnetic field is 3.34×.
To get more information about Electromagnetic waves :
brainly.com/question/18165320?referrer=searchResults
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