Answer:
<h2><em>
3.067MHz</em></h2>
Explanation:
The formula for calculating the voltage across an inductor is expressed as
Given parameters
current amplitude I = 1.50mA = 1.5*10⁻³A
inductance L = 0.450mH = 0.450*10⁻³H
Voltage across the inductor = 13.0V
Required
frequency f
Substituting the given parametres into the formula, we have;
<em>Hence, the frequency required is 3.067MHz</em>
Answer:
U = G m M / R1
, U = 18.95 10¹⁴ J
Explanation:
The law of universal gravitation is
F = G m M / r²
Force is related to potential energy
F = - dU / dr
dU = - F dr
Let's replace and integrate
∫dU = - G m M ∫ dr / r²²
Uf - U = - G m M (-1 / r)
It tells us to take zero potential (U = 0) for a distance inf (r = ∞) this is the end point
0 - U = - G mM (- 1 /∞ + 1 / r)
U = G m M / r
Let's calculate the potential energy of the meteor with the data
U = G m M / R1
m = 0.86 10 kg
M = 7.6 10²⁵ kg
R1 = 2.3 10⁷ m
U = 6.67 10⁻¹¹ 0.86 10 7.6 10²⁵ / 2.3 10⁷
U = 18.95 10⁸ J
R1 = 2.3 10 m
U = 6.67 10⁻¹¹ 0.86 10 7.6 10²⁵ / 2.3 10
U = 18.95 10¹⁴ J
All of that light and heat is the product of <em><u>chemical energy</u></em> released from
the log, when parts of the log get warm enough to combine with oxygen
and carry on the heat-releasing reaction.
Answer:
1) The Newton's law the Hulk is most closely demonstrating is <em>the Third Law of motion</em>
Newton's third law of motion states that action and reaction are equal and opposite.
2) The reason why the Newton's Law the Hulk is most closely demonstrating is the Newton's Third Law of Motion is that according to Newton's Third Law of motion, forces exist in pairs, the action of the Hulk when he leaps upward by pushing against the the Earth (which can be assumed stationary in relation to the Hulk), is equal to the reaction of the Earth, which moves down slightly, away from its initial position.
However, due to the large mass of the Earth, compared to the mass of the Hulk, the downward motion of the Earth due to the reaction force (equal to the force with which the Hulk leaps) is negligibly small, such that the Earth can absorb the Hulk's leap force by reacting mainly locally, at the leap point by forming a crater, while the Earth in general, remains in the same place
Explanation: