Answer:
so that each component has the same voltage.
Explanation:
The work performed on an object is the force multiplied by the distance it is moved, provided the movement is parallel to the force. Since that is the case here, we can get the work by W=Fd=1900N x 0.23m = 437J. This energy is used to split the wood.
I think the correct answer from the choices listed above is the first option. The statement that best describes the state of metals when they are at room temperature would be that most <span>nonmetals are gaseous, but some are liquid or solid. Hope this answers the question. Have a nice day.</span>
Answer:
An attraction between two objects that have mass :)
Let us follow the motion of the hammer first. Because the elevator is in motion, when he drops the hammer, because of inertia, there is a slight moment when the hammer also rises with the elevator. Eventually it will reach its highest peak and drop down to the floor. So, the total time for the hammer to reach the floor would include: (1) the time for it to rise with the elevator to its highest peak and (2) the time for the free fall from the highest peak to the floor.
1.) Time for it to rise with the elevator to its highest peak:
Hmax = v²/2g = (6 m/s)²/2(9.81 m/s²) = 1.835 m
Time to reach 1.835 m = 1.835 m * 1 s/6 m = 0.306 s
Time for the free fall from the highest peak to the floor:
t = √2y/g, where y is the total height
y = 1.835 m + 42 m = 43.835 m
So,
t = √2(43.835 m )/(9.81 m/s²) = 2.989 s
Therefore, the total time is 0.306 s + 2.989 s = 3.3 seconds
2.) Velocity of impact of a free-falling body is:
v = √2gy
v = √2(9.81 m/s²)(43.835 m)
v = 29.33 m/s
