Answer: The right answer is b)
Explanation:
By definition, acceleration is the change in velocity (in module or direction) over a given time interval, as follows:
a = (v-v₀) / (t-t₀)
If we take t₀ = 0 (this is completely arbitrary), we can rewrite the equation above, as follows:
v = v₀ + at
We can recognize this function as a linear one, where a represents the slope of the line.
If a is constant, this means that the relationship between the change in velocity and the change in time remains constant, in other words, in equal times, its velocity changes in an equal amount.
Let's suppose that a = 10 m/s/s. (Usually written as 10 m/s²).
This is telling us that each second, the velocity increases 10 m/s.
When discharging equivalent of 0% starting voltage will the capacitor reach after 5RC.
V(t) = V0e-t/RC = V0b initially.
<h3>What is capacitor?</h3>
- In an electric field, a capacitor is a device that stores electrical energy. It has two terminals and is a passive electrical component.
- Capacitance refers to a capacitor's effect.
- The terminals in a capacitor are connected to two metal plates that are spaced apart by a dielectric, a non-conducting material.
- Two pieces of aluminum foil, along with a piece of paper, can be used to create a capacitor (and some electrical clips).
- It won't have a lot of storage capacity, so it won't be a great capacitor, but it will still function.
<h3>What are the different types of capacitors?</h3>
The numerous kinds of capacitors and their applications.
- Frequently utilized in radio tuning circuits is air.
- Mylar: The material most frequently used in timer circuits for clocks, alarms, and counting.
- Good for high-voltage applications is glass.
- Ceramic is used in X-ray, MRI, and other high-frequency devices.
- a powerful capacitor fuels hybrid and electric vehicles.
Learn more about capacitors here:
brainly.com/question/17584935
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C. Three isotopes of the same element because the number of electrons and protons remain the same but the number of neutrons in the nucleus are different. This means that the isotopes have different masses to each other but the same chemical properties.
Answer:
Free-fall is defined as the movement where the only force acting on an object is the gravitational force.
By the second Newton's law, we have that:
F = m*a
Where F = Force, m = mass, a = acceleration.
We can write this as:
a = F/m
And the gravitational force can be written as:
F = (G*M/r^2)*m
Where G is the gravitational constant, M is the mass of the Earth in this case, and r is the distance between both objects (the center of the Earth and the free-falling object)
As the radius of the Earth is really big, the term inside the parentheses is almost constant in the region of interest, then we can write:
G*M/r^2 ≈ g
And the gravitational force is:
F = g*m
And by the second Newton's law we had:
a = F/m = (g*m)/m = g
a = g
Then the acceleration does not depend on the mass of the object.
Then the thing that is common among the free-falling objects is the vertical acceleration.
Answer:
Explanation:
According to the Principle of Energy Conservation and the Work-Energy Theorem, the bullet has the following expression:
![F\cdot \Delta s = \frac{1}{2}\cdot m \cdot [v_{A}^{2}-v_{B}^{2}]](https://tex.z-dn.net/?f=F%5Ccdot%20%5CDelta%20s%20%3D%20%5Cfrac%7B1%7D%7B2%7D%5Ccdot%20m%20%5Ccdot%20%5Bv_%7BA%7D%5E%7B2%7D-v_%7BB%7D%5E%7B2%7D%5D)
The average force exerted on the bullet to stop it is:
![F = \frac{m\cdot [v_{A}^{2}-v_{B}^{2}]}{2\cdot \Delta s}](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7Bm%5Ccdot%20%5Bv_%7BA%7D%5E%7B2%7D-v_%7BB%7D%5E%7B2%7D%5D%7D%7B2%5Ccdot%20%5CDelta%20s%7D)
![F = \frac{(7.8\times 10^{-3}\,kg)\cdot [(540\,\frac{m}{s} )^{2}-(0\,\frac{m}{s} )^{2}]}{2\cdot (0.051\,m)}](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7B%287.8%5Ctimes%2010%5E%7B-3%7D%5C%2Ckg%29%5Ccdot%20%5B%28540%5C%2C%5Cfrac%7Bm%7D%7Bs%7D%20%29%5E%7B2%7D-%280%5C%2C%5Cfrac%7Bm%7D%7Bs%7D%20%29%5E%7B2%7D%5D%7D%7B2%5Ccdot%20%280.051%5C%2Cm%29%7D)
