Which of the following can be reduced to a single number in standard form?

To find the time required for one revolution, compute as follows:
0.510 s / 440 revolutions = 51/44000 s
. The frequency in Hertz is the reciprocal of this figure, resulting in a frequency of about 862.75 Hz.
The angular velocity in radians per second
is calculated as (440 rev / 0.510 s) x (2π rad / 1 rev) = 5420.787 rad/s
. The period, which is the inverse of frequency, is approximately equal to 1.16x10^-3 s.

Answer:

As indicated in the attached document

Explanation:

The comprehensive steps, mathematical reasoning, and manipulations are presented in the attachment.

Answer:

The cooker receives an average energy transfer rate of 1.80 kW.

Explanation:

Given that,

Pressure of the boiling water = 300 kPa

Mass of water = 3 kg

Duration = 30 min

Dryness fraction of the water = 0.5

What is the average energy transfer rate to the cooker?

We know that,

The specific enthalpy of vapor at 300 kPa is

We need to determine the initial state enthalpy of water

We must find the enthalpy of water in the final state

Using the enthalpy formula

Insert the value into the formula

Next, we calculate the energy transfer rate to the cooker

Using the energy rate formula

Substituting the value into the formula

Therefore, the average energy transfer rate to the cooker stands at 1.80 kW.