Answer:
The changing magnetic field within the loops of wire creates an electric field that pushes the electrons in the wire through the lamp, briefly lighting it
Explanation:
The GE demonstrates that a voltage, and hence a current, can be generated by plunging a coil of wire into and out of a strong magnet.
Answer:
The final temperature of both objects is 400 K
Explanation:
The quantity of heat transferred per unit mass is given by;
Q = cΔT
where;
c is the specific heat capacity
ΔT is the change in temperature
The heat transferred by the object A per unit mass is given by;
Q(A) = caΔT
where;
ca is the specific heat capacity of object A
The heat transferred by the object B per unit mass is given by;
Q(B) = cbΔT
where;
cb is the specific heat capacity of object B
The heat lost by object B is equal to heat gained by object A
Q(A) = -Q(B)
But heat capacity of object B is twice that of object A
The final temperature of the two objects is given by
![T_2 = \frac{C_aT_a + C_bT_b}{C_a + C_b}](https://tex.z-dn.net/?f=T_2%20%3D%20%5Cfrac%7BC_aT_a%20%2B%20C_bT_b%7D%7BC_a%20%2B%20C_b%7D)
But heat capacity of object B is twice that of object A
![T_2 = \frac{C_aT_a + C_bT_b}{C_a + C_b} \\\\T_2 = \frac{C_aT_a + 2C_aT_b}{C_a + 2C_a}\\\\T_2 = \frac{c_a(T_a + 2T_b)}{3C_a} \\\\T_2 = \frac{T_a + 2T_b}{3}\\\\T_2 = \frac{300 + (2*450)}{3}\\\\T_2 = 400 \ K](https://tex.z-dn.net/?f=T_2%20%3D%20%5Cfrac%7BC_aT_a%20%2B%20C_bT_b%7D%7BC_a%20%2B%20C_b%7D%20%5C%5C%5C%5CT_2%20%3D%20%5Cfrac%7BC_aT_a%20%2B%202C_aT_b%7D%7BC_a%20%2B%202C_a%7D%5C%5C%5C%5CT_2%20%3D%20%5Cfrac%7Bc_a%28T_a%20%2B%202T_b%29%7D%7B3C_a%7D%20%5C%5C%5C%5CT_2%20%3D%20%5Cfrac%7BT_a%20%2B%202T_b%7D%7B3%7D%5C%5C%5C%5CT_2%20%3D%20%5Cfrac%7B300%20%2B%20%282%2A450%29%7D%7B3%7D%5C%5C%5C%5CT_2%20%3D%20400%20%5C%20K)
Therefore, the final temperature of both objects is 400 K.
The acceleration of a 600,000 kg freight train, if each of its three engines can provide 100,000N of force is 0.167m/s².
<h3>How to calculate acceleration?</h3>
The acceleration of a freight train can be calculated using the following formula:
Force = mass × acceleration
According to this question, a 600,000kg freight train can produce 100,000N of force. The acceleration is as follows:
100,000 = 600,000 × a
100,000 = 600,000a
a = 0.167m/s²
Therefore, the acceleration of a 600,000 kg freight train, if each of its three engines can provide 100,000N of force is 0.167m/s².
Learn more about acceleration at: brainly.com/question/12550364
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Answer:
compressions; rarefactions
Explanation:
Answer: 576.48 N*m^2/C
Explanation: In order to calculate the electric flux through the any surface we have to take into account the scalar product between the electric field vector and the normal vector to the surface.
So we have:
ФE= E*A= 1.33 * 10^4*0.0518* cos (33.2°)= 576.48 N*m^2/C