Answer:
The speed of sound can be gotten by simply finding the average of the results.
=0.756s
It is advisable for the students to repeat 5 times because it allows them to (a) estimate the variability of the results (how close to each other they are) and (b) to increase the accuracy of the estimate.
Answer:
(a) and (b)
Explanation:
The linear magnification (M) <u>produced by a lens is giving by</u>:
(1)
<em>where : is the image distance and : is the object distance </em>
<u>Knowing that the</u> lens formula relates the focal length of an image with the distance of the image and the distance of the object:
(2)
(a) To calculate the distance of the object, first we have to express the equation (1) in function of the image distance:
(3)
Finally, by the introducing from (3) into equation (2) we can determine the distance of the object as follows:
(4)
So the object needs to be placed at 0.501 cm from the microscope.
(b) To find the distance of the length eyepiece <u>we will do the same treatment as before, to get to equation (4)</u>:
Have a nice day!
Answer:
Y = 4.775 x 10⁹ Pa = 4.775 GPa
Explanation:
First, we calculate the stress on the rod:
Now, we calculate the strain:
Now, we will calculate the Young's Modulus (Y):
<u>Y = 4.775 x 10⁹ Pa = 4.775 GPa</u>
Infrared waves are further apart and ultra violeet are close together