One very handy electrical formula is
Power dissipated by a resistance = (Voltage)²/(resistance) .
24 kilowatts = (240 v)² / Resistance
Multiply each side by (Resistance):
(Resistance) x (24 kilowatts) = (240 v)²
Divide each side by (24 kilowatts):
Resistance = (240 v)² / (24,000 watts)
Resistance = (57,600 / 24,000) (volt² / volt · Amp)
Resistance = 2.4 (volt/Amp)
Resistance = 2.4 Ohms
As the wave travels through different media, its speed and wavelength change, and its frequency remains constant.
mark brainliest :)
Answer:
This system uses angular momentum and torque to do work on objects, typically against the force of gravity. The wheel and axle simple machine is closely related to gears.
Answer:
81.42 km/h
Explanation:
t = Time taken for the car to slow down
u = Initial velocity = 100 km/h
v = Final velocity
s = Displacement = 20 m = 0.02 km
a = Acceleration = -6.5 m/s² = -0.0065×60×60×60×60 = -84240 km/h²
Equation of motion
Speed of the truck at the end of this distance is 81.42 km/h