Acarnot engine's operating temperatures are 240 ∘c and 20 ∘c. the engine's power output is 910 w . part a calculate the rate of heat output. express your answer using two significant figures.

1200

Explanation:

Given data

Upper Temprature

Lower Temprature

Engine power ouput

Efficiency of carnot cycle is given by

rounding off to two significant figures

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

it takes about 30 days for it to break down