Answer:
A) 4.66 cm
B) 25.56 cm
Explanation:
A) real depth of fish = 6.2 cm
apparent depth =d
Now 
= 1.33
d = 4.66 cm
B) Image of fish will be formed 13.9 cm behind the mirror so its position from
surface of water will be
20.1 + 13.9 = 34 cm . This will be real depth of image
If D be its apparent depth then
\frac{34}{D}=1.33
D =\frac{34}{1.33}
D = 25.56 cm
By definition, we have that the speed is given by:
Where,
d: distance traveled
t: time to travel said distance
Substituting values we have:
Then, rounding the obtained speed we have:
Answer:
Kenneth's average speed is:
v = 4.8 mph
That's an urban legend that's been around for a long time.
It was tested on "Mythbusters". The conclusion was that
it would sting pretty good, and maybe raise a lump, but
it would never penetrate the skull, and it couldn't kill.
<span>The earth does no work on her if she's falling in the direction of frictional force. But suppose it does work on the woman i.e in the opposite direction, N. Then we have F = mg where g is acceleration due to grav. So F = 68 * 9.8 = 666.4 Newton. Then work done = force * distance = 666.4 * 100 = 666400</span>
