Answer:

Explanation:
The translational kinetic energy depends on the mass and speed of the body, as follows:

While rotational kinetic energy depends on the moment of inertia and the angular velocity of the body, as follows:
. We know that:

Replacing (1) in (2):

Q: An appliance with a 20 Ω resistor has a power rating of 15.0 W. Find the maximum current which can flow safely through the appliance g
Answer:
0.866 A
Explanation:
From the question,
P = I²R............................. Equation 1
Where P = power, I = maximum current, R = Resistance.
Make I the subject of the equation
I = √(P/R).................... Equation 2
Given: P = 15 W, R = 20 Ω
Substitute these values into equation 2
I = √(15/20)
I = √(0.75)
I = 0.866 A
Hence the maximum current that can flow safely through the appliance = 0.866 A
Answer:
2,421,666 miles
Explanation:
light travels 186,282 miles per second in a vaccum.
So 186,282 × 13 = 2,421,666
This is the reason why dimensional analysis is very important. It is a technique used that only involves operations with units. You disregard the quantities first. The concept is to make sure that the final answer of your calculations must be consistent of what is asked. Similar units are cancelled when they appear both on the numerator and denominator side. If the mathematicians used this, they could've prevented the crash from happening. What good would the calculations bring if you are not consistent with the units?
In up milling the cutter rotates clockwise when cutting the workpiece from right to left. in down milling the cutter rotates clockwise when cutting the workpiece from left to right