Answer:
The work is required to stretch it from 8 m to 16 m is 192 N-m
Explanation:
Given that,
Natural length = 8 m
Force F = 12 N
After stretched,
length = 10 m
We need to calculate the elongation
Using hook's law
The restoring force is directly proportional to the displacement.
Where, k = spring constant
Negative sign shows the displacement in opposite direction
Now, The value of k is
When stretch the string from 8 m to 16 m.
Then the elongation is
Now, The work is required to stretch it from 8 m to 16 m
Where, k = spring constant
x = elongation
Hence, The work is required to stretch it from 8 m to 16 m is 192 N-m
The correct option is B.
According to Einstein, in his special theory of relativity, a moving clock runs more slowly as its velocity increases until it gets to the speed of light and it stops running altogether. Thus, the clock that is travelling the fastest will have the slowest passage of time while the one that is travelling the slowest will have the fastest passage of time.
Hi,
I've found a link that should assist you or answer your question.
http://click.dji.com/ANbvbbP7bwUWtSACp6U_?pm=link&as=0004
Have a nice day!
Answer:
Description.
Explanation:
Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.
This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.
Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement, position, etc.
A reference point refers to a location or physical object from which the motion (movement) of another physical object or body can be determined.
For example, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.
Hence, if the reference point changes, the description of position changes, but the actual position does not change.
Explanation:
We have,
Slit separation, d = 0.329 mm
Distance between slit and screen, D = 2.20 m
The first bright fringe is formed at a distance off 2.9 mm from the center of the pattern. We need to find the wavelength.
For double slit experiment, the fringe width is given by :
is wavelength
So, wavelength is 433 nm.
