-- If 2,000 newtons of force were applied through a distance of 1,000 meters,
then 2,000,000 newton-meters = 2,000,000 joules of work were done.
-- 45 minutes = (45 x 60) = 2,700 seconds
-- Power = (work) / (time) = (2,000,000 j) / (2,700 s) = <u>740.74 watts</u>
Interestingly, that's almost exactly 1 horsepower. (0.99295... of 746 watts)
~Hello there! ^_^
Your question: An objects momentum is determined by the object's..?
Your answer: An objects momentum is determined by the object's mass and velocity.
Happy Studying! =)
Answer:
Can enter or leave the system matter and energy. (The correct option is D)
Explanation:
Open system is defined as the system where exchange of matter, and energy occurs with its surrounding, presenting breaking down, and build up of its materials, and import, export of components.
Open system transfer the material into, and out of the system boundary, it contains an external interaction. A good example of open system is living things they actively connect with its environment, in results it shows changes in both the environment, and the living things.
So, the correct option is D.
Answer:
We have two possible values for the second tuning fork
443Hz and 337Hz
Explanation:
When two waves of slightly different frequency interfere, they produce beats and the frequency of the beats (fb) is:
with f1 the frequency of the first tuning fork and f2 the frequency of the second tuning fork, so we should solve
note that it is the absolute vale of the rest between f1 and f2 so we have two equations and two possible values:
and
