Answer:
E = 4.76 eV
Explanation:
It is given that,
Wavelength = 417 nm
Potential difference = 1.15 V
We need to find the energy of a photon of this light in electron volts. The energy of a photon is given by :
Where
h is Planck's constant, c is speed of light
We know that,
or
E = 4.76 eV
So, the energy of a photon is 4.76 eV.
it is A: 'sunlight is absorbed to produce energy', because the mitochondrion produces energy so A could only be the answer
The answer is A. 50 m/s
I took the test and completed the study guide in class and got it correct.
V = at + V0
where v0 is the initial speed, a is the acceleration and t is the time.
So:
v = 5m/s^2*5s + 25m/s = 50 m/s
Opposite to the direction of the velocity which led it to its current position.
Explanation:
The direction of momentum when a vertically oscillating block comes to the rest momentarily will be opposite to the direction of the velocity that it has just followed to reach reach its current position.
The direction of change in momentum at the bottom will be upwards and at the top will be downwards.
The change in momentum is mathematically defined as:
where:
mass of the block
final velocity of the block
initial velocity of the block
When the block comes to rest it is due to the result of continuously decreasing velocity.