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a. The mass of an electric car is 900 kg including the passengers. A single motor mounted on the front wheels drives the car, and the radius of the wheel is 0.3 m. The car is going downhill at a speed of 50 km/hr, and the slope of the hill is 30 degrees. The friction coefficient of the road surface at a given weather condition is 0.8. Ignore the motor losses and compute the power generated by the electric machine.
b. Assume that the electric car above is moving at a constant speed. It takes the car 1 minute to reach the bottom of the hill. Calculate the energy generated by the electric machine.
calculate the mmf when the machine operates at rated voltage at full load? PLease explain how to get the solution to this problem?
Rayleigh Scattering. Calculate the % increase is attenuation due to Rayleigh scattering exhibited by light having a free-space wavelength 1535 nm as compared to light having a free space wavelength 1550 nm. Provide your answer in units of [%] and ..
A transconductance amplifier with Ri = 2 kΩ, Gm = 40 mA/V , and Ro = 20kΩ is fed with a voltage source having a source resistance of 2kΩ and is loaded with a 1kΩ resistance. Find the voltage gain realized (from the source internal voltage to the o..
calculate the average signal-to-noise (SNR) in decibels (dB) Assume equal numbers of binary 0s and 1s.
A 100 W bulb takes 0.833A and a 200 W bulb takes 1.67 A from a 120V source. If the two bulb were connected across a 240 V source, what current in amperes will flow through the bulbs?
A transformer is used to match an 8 ohm speaker to a 500ohm audio line. What is the turns ratio of the transformer what is the input voltage and output voltage when 15W is being delivered to the speaker
What annual revenue is required to cover fixed costs? What will be the annual variable costs? How much will electricity cost per kWh?
The SV curve can be used to understand the impact of constant power factor shunt compensation support. In this case, the receiving end is injected with a specific amount of reactive power so that the receiving end maintains a constant load power f..
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
During an AP, the membrane potential typically moves from -70mV to +20mV and back again. In a cell with 10um radius and 1uF/cm^2, how many charges need to move across the membrane (and back again) to get this 90 mV voltage fluctuation?
What is the equivalent input noise resistance of an amplifier known to produce 20 V of equivalent input noise over a bandwidth of 750 kHz
Assume that an additional inductance can be inserted in series with the load. also assume that the converter has no freewheeling diodes. Calculate the added inductance that leads to a conduction period of 180 degrees when alpha = 30 degrees.
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