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.

Find the integral of x2 dx dy. Use inner limits = 0 to 2y and outer limits = 0 to 2. (5 points)

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

how many kg of hot water at 80C must me added to cold water at 15C in order to make a 1.5kg mixture at 25C? Neglect heat losses

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