Answer:
1500 per second.
Explanation:
vibrations = 1.5 kilohertz
1.5×1000=1500
the answer is 1500 per second.
B. my town is powered by electricity that is generated by the energy from the flow of water through a large dam.
The water from the large dam is example of renewable energy. It can be replenished through rainfall cycle, so it is a renewable form of energy.
Her displacement is 41m. First, she walks 32m to the right, then 12m to the left. I subtract 12 from 32 to get 20m. She walks 28m to the right. Add 28 to 20 and you get 48. Finally, she walks 7m to the left. Subtract 7, then you get 41m.
Answer:
ε= 7.86 mV, Current: Anti-clockwise
Explanation:
radius= 50 mm
dt= 0.10 s
Initial magnitude of magnetic field= B1 = 200 mT
Final magnitude of magnetic field = B2 = 300 mT
Ф= B. A= BA cosα
Ф1= B1 * A * cosα
Ф1= 
Ф1= 0.00157 Wb
Ф2= B2 * A * cosα
Ф1= 
Ф2=0.00236 Wb
dФ= Ф2 - Ф1
dФ= 0.00236 - 0.00157
dФ= 0.000786 Wb
ε=
Ф
ε=0.001786/ 0.10
ε=0.00786 v = 7.86 mV
b)
According to lenz's law the induced emf always oppose the cause producing it.
Applied field is out of the paper so the current will flow in anti-clockwise direction to produce north pole pointing toward the paper.