Answer
given,
conducting wire length = ℓ m = 0.5
moves at velocity = v m/s = v ( t ) = 4 t + 9
magnetic field strength = B = 2 T
V = − B ℓ v
V = - 2 × 0.5 × v
V = - v
a) 
b) given
v ( t ) = 4 t + 9
V = (-1)(4t + 9)
Answer:
fossil fuels are natural and limited, nuclear is man made and more toxic
Explanation:
Answer:
<em>Answer: B. $0.78.</em>
Explanation:
<u>Cost of Electricity
</u>
The rate of the cost of electricity is usually expressed in $/kWh or cents/kWh because the consumption of electricity is measured in Kilowatts-hour.
The local power company charges 5.79 cents/kWh.
We are required to calculate the cost to run a 120 W stereo system for 4 hours per day for 4 weeks.
The total consumption time is 4 hours/day * 7 days/week *4 weeks = 112 hours
The total energy consumed is 120 W * 112 h =13,440 Wh.
Converting to kWh: 13,440 Wh/1,000 = 13.440 kWh.
Finally, we multiply by the cost rate: 5.79 cents/kWh * 13.440 kWh = 77.8 cents/100 = $0.78.
Answer: B. $0.78.
Answer:
Solar energy, Wind energy, Hydro energy, Tidal energy, Geothermal energy, Biomass Energy.
Explanation:
I hope that it helps you...
Answer:
electromagnetic waves need a medium to travel through
