Answer:
To calculate kinetic energy, you use the formula KE = 0.5 * m * v^2, where "m" is the mass and "v" is the speed. There isn't a common factor that works for every speed; the factor you use is 0.5. This formula is derived from the principles of classical mechanics and doesn't change with speed; it's a fundamental equation for calculating kinetic energy.
Answer:
a. 80 J/cell b. 1.02 × 10²¹ W/m² c. 8.77 × 10¹¹ V/m d. 2.92 × 10³ T
Explanation:
a. We know that energy E = Pt where P = power and t = time
The total energy delivered to all the 100 cells is E = average power × time
average power = 2 × 10¹² W and time = 4 ns = 4 × 10⁻⁹ s
E = 2 × 10¹² W × 4 × 10⁻⁹ s = 8 × 10³ J
The energy per cell E₁ = E/100 = 8 × 10³ J/100 = 80 J/cell
b. Intensity, I = P/A where P = power per cell = 2 × 10¹² W/100 = 2 × 10¹⁰ W and A = area = πr². Since the cell is modeled as a disk of diameter d = 5.0μm, r = d/2 = 5.0 μm/2 = 2.5 μm = 2.5 × 10⁻⁶ m
I = P/A = P/πr² = 2 × 10¹⁰ W/π(2.5 × 10⁻⁶ m)² = 1.02 × 10²¹ W/m²
c. The intensity I = E²/2cμ₀ where E = maximum value of electric field, c = speed of light = 3 × 10⁸ m/s and μ₀ = 4π × 10⁻⁷ H/m
E = √(I2cμ₀) = √(2 × 1.02 × 10²¹ W/m² × 3 × 10⁸ m/s × 4π × 10⁻⁷ H/m) = 8.77 × 10¹¹ V/m
The maximum magnetic field B is gotten from E/B = c
B = E/c = 8.77 × 10¹¹ V/m/3 × 10⁸ m/s = 2.92 × 10³ T
Answer: The correct answer is "No".
Explanation:
Gravity: It is the force which causes object to fall on the earth. It is the force which attracts bodies towards each other.
Potential difference: It is defined as the potential acting between the two points. The work done in moving the unit positive charge from one location to the another location.
The potential difference in battery is caused by the electrodes. There are two terminals in battery: Negative terminal which is at lower potential and Positive terminal which is at higher potential. It forces the electrons to flow in the circuit which constitutes the current.
The gravity and the potential difference have no relation between them.
Therefore, gravity have no effect on the potential difference of a battery.
Gravity does not have a direct role in determining the potential difference in a battery. It is the chemical reaction inside the battery that generates the potential difference, which transforms into electric potential energy when the battery is connected to a load. Analogies exist between gravitational and electric potential energies, but they function independently of one another.
No, gravity does not have a direct effect on the potential difference of a battery. The potential difference in a battery is generated via a chemical reaction within the battery itself that separates charge. The energy stored in the battery is primarily presented in the form of chemical potential energy, which transforms into electric potential energy when the load is connected.
This mechanism is independent of gravitational forces. To illustrate this, let's consider the following analogy: the potential energy of a raised hammer is stored in Earth's gravitational field. If the gravitational field were to disappear, the hammer would have no potential energy. Similarly, in the battery, if no electric field existed between the plates, no energy would be stored between them. This analogy showcases that the electrical potential in the battery does not depend on gravity. However, it would be misleading to interpret this as a correlation between the two. The force acting in a battery is electromagnetic, not gravitational.'
On another note, a similar analogy exists between gravitational potential energy and electric potential energy. On one hand, the gravitational potential energy increases as an object is lifted higher in Earth's gravitational field. On the other hand, the electric potential energy increases as the positive charge gets farther from the negative charge in the battery. The acceleration due to gravity changes as we move away from Earth, requiring adjustments in the expressions for gravitational potential energy. However, these factors do not impact the potential difference in a battery.
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B. Stratovolcano
C. Shield volcano
* it’s not B
the correct answer would be
C