an aircraft weighing 1000 lbs stalls at an airspeed of 50 KEAS. what would be the stalling airspeed if the weight is increased to 4000 pounds if all else stays the same

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west