Answer: Voltage, V=120V; Power,P=10kW or 10,000W
P = V*I (where I is current)
∴ I = P/V =10000/120 = 83.3A
Resistance, R = V/I = 1.44 ohms
Power Factor(cosФ)= 0.9 = Resistance, R/Impedance, Z
∴ Z = 1.44/0.9 = 1.6 ohms
Explanation: The three-phase inductive load supply carries alternating current of the same frequency and voltage amplitude relative to a common reference but phase difference of one third of a cycle between each of three voltages and currents.
Explanation:
According to newton's second law of motion.
m is the mas of the sky diver = 93.4kg
a is the acceleration of the skydiver
From the formula above;
Hence the acceleration of the sky diver is 1.563m/s²
Answer:0.07 rad/s
Explanation:
Given
kite is 100 ft high
and moves horizontally at 7 ft/s
Total string let out =200 ft
String length(l), vertical(y) & Horizontal(x) distance of kite will form a right angle triangle
Differentiating both side
Now
Differentiating
Answer:
<u>Jupiter and Saturn</u>
Explanation:
Giant planets -
Giants planets have maximum moons ,
for example ,
Jupiter and Saturn .
Jupiter have 63 moons ( according to 2009 calculation ) , where , 8 moons are the regular satellites , 4 moons are spherical and large , 4 moons are small and close to Jupiter , in addition to it Jupiter have 55 irregular satellites .
Second highest moon is with planet Saturn , with 61 moons .
Many of moon's are thought to have been captured from the small-body population during the formation of the solar system .