A 9-volt battery is connected to a capacitor that stores 4.5 × 10–3 joules of energy. Calculate the amount of charge on the capa
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The object's <u>initial velocity</u> is equal to
Why?
From the statement we know the height of the tree and the time it takes to reach the ground, so, if we need to calculate its initial velocity, we can use the following formula:
Where,
y, is the final height (0 meters in this case)
yo, is the initial height (111 meters in this case)
t, is the time elapsed (3.8 seconds in this case)
vo, is the initial speed.
g, is the acceleration due to gravity (-9.81 m/s2)
Now, let's set the origin at the top of the tree, so, rewriting the formula, we have:
So, isolating the initial velocity, we have:
Finally, substituting and calculating, we have:
Hence, we have that the <u>initial velocity</u> of the object is
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Answer:
The Planck constant, or Planck's constant, is a fundamental physical constant denoted h, and is of fundamental importance in quantum mechanics. A photon's energy is equal to its frequency multiplied by the Planck constant. Due to mass–energy equivalence, the Planck constant also relates mass to frequency.
<h3>Theory:</h3>Planck postulated that the energy of light is proportional to the frequency, and the constant that relates them is known as Planck's constant (h). His work led to Albert Einstein determining that light exists in discrete quanta of energy, or photons.
E = hf
Answer with explanation:
Part a)
Part b)