Answer:
889.644 newton
Explanation:
multiply the pound value by 4.448
Answer: Energy cannot be <u>created</u> or <u>destroyed</u> just <u>changes</u> in form.
Explanation:
This is the principle of the first Law of Thermodynamics, which relates the work and the transferred energy exchanged in a system through the internal energy, which is neither created nor destroyed, it is only transformed.
In other words: The total energy of a system is always conserved.
Answer:
technician A.
Explanation:
Commonly, air pressure rating of standard shop air compressor's is between the range of 100 psi and 150 psi. And over the years since, the plant pressure creep's up , the level of pressure increases from 100 psi to at max 150 psi but not more than that. Therefore, in the given question technician A is correct and technician B is incorrect.
Option C: Later in the day, less power is developed in lifting each box
The "weight" of anything is
(the object's mass)
times
(the acceleration of gravity in the place where the object is).
Let's back up for a second, and consider why the hammer is called
"a 2-pound hammer" in the first place ?
That's because on Earth, where the hammer has spent all of
its life so far, and where it is acted upon by Earth's gravity, it
weighs 2 pounds.
The acceleration of gravity on Earth is 9.8 m/s².
(weight) = (mass) x (acceleration of gravity)
so
2 pounds = (mass) x (9.8 m/s²) .
Look at that equation.
If the left side suddenly becomes 1 pound instead of 2 pounds,
then something on the right side must also have suddenly become
1/2 of what it used to be. It's not the mass ... mass doesn't change.
So it must have been the acceleration that changed by half ...
it became (1/2 of 9.8) = 4.9 m/s² .
