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An object is launched at a velocity of 20m/s in a direction making an angle of 25° in a 50 meter elevation. How long is the object in the air? What is the range of the object?
Where do you use dynamo in your daily life?
Answer the Following Problem
Direction: Find all the currents and voltages across each resistor and cell in the following circuits;
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6.
A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?
At airport, a person is made to walk through a doorway of a metal detector, for security reasons. If he is carrying anything made of metal, the metal detector emits a sound. On what principle does the metal detector work?
. Carnot power cycle operates on 2 lb of air between the limits of 70°F and 500°F. The pressure at the beginning of an isothermal expansion is 400 psia and at the end of an isothermal expansion is 185 psig. Determine the efficiency of the cycle.
A Carnot cycle has a thermal efficiency of 32%. If the work developed is 1000 watt-hour, determine the heat supplied.
Give the Trigonometric Functions and the value of x and y components
1. 30 degrees, West of South
2. 60 degrees North if West
Prove that electric field and electric potential are connected by the formula E=V/r
Find the resultant vector using component method:
A = 20km, Eastward
B= 15km, 35 degrees North of West
