Electrical Engineering Answers

A spacecraft takes 200 km after being launched to reach the escape speed from the earth of 11.2km/s. Find the average acceleration in terms of g

A battery delivers 10 joules of energy to move 5 coulumbs of charge. What is the electromotive force between the terminals of the battery?

The potential difference between a certain thundercloud and the ground is 7MVolts. Find the energy dissipated when a charge of 50 Coul is transferred from the clouds to the ground in a lightning stroke

You have a RC circuit which contains a capacitor of 0.02 F and a resistor of 350 Ohm. Calculate how 

long it would take (in seconds) for the capacitor to be charged to 89% of its full voltage.

Two equal resistors of 15 kΩ each are connected in series across a 120 V source. A voltmeter when connected across each read 48 V in each case. Determine the resistance of the voltmeter.

Two equal resistors of 15 kΩ each are connected in series across a 120 V source. A voltmeter when connected across each read 48 V in each case. Determine the resistance of the voltmeter.

An air craft flight at an attitude of 320m it fire a rocket with the initial velocity of 300km/h how long does it take the rocket to reach the ground

A missile is launched from the earth surface with the initial velocity of 100ms-1. at an elevation of 30 degree.calculate

2. greatest height attained.

2. time of fright.

3. Velocity of a missile at time 8 second

A fly wheel has a speed of 300 r.p.m.

1 what is it angular velocity

2. What angle will be generated in 0.2 second

3 what much time is required for the wheel to rotate through 628 radians

The population of a town grows at a rate proportional to the population present at time t. The initial population of 5000 increases by 50% in 10 years. What will be the population in 30 years?