Answer: 72200
Explanation:
First you must find the height for this is on an inclined hill using:
h=Lsin(angle) —> 28.0sin(11.0) = 5.34
Now you would just use the PE equation (mgh) because you are finding ME and when you starting from the top KE=0, showing that what ever answer you get from PE would equal the same for ME.
Using mgh:
m=1380
g=9.80
h=5.34
(1380)(9.8)(5.34)
=72218.16
*Rounding to the 3rd=72200
Hope this helps :)
To solve the problem it is necessary to apply the concepts related to Chvorinov's Law, which states that
Where,
= Volume cube
= Superficial Area from Cube
= Volume Rectangle
= Superficial Area from Rectangle
Our values are given as (I will try to develop the problem in English units for ease of calculations),
Applying the Chvorinov equation we have to,
The stipulated time for the cube is 14.5 then,
Both balls hit the ground at the same time.
We've known this fact for about 500 years (since Galileo),
and we've known WHY for about 300 years (since Newton).
Answer:
Power factor of the AC series circuit is
Explanation:
It is given that,
Impedance of the AC series circuit, Z = 60 ohms
Resistance of the AC series circuit, R = 30 ohms
We need to find the power factor of the circuit. It is given by :
So, the power factor of the ac series circuit is . Hence, this is the required solution.