Blog

Find the speed in of light in flint glass. (n = 1.95 for flint glass).

An object is placed 25 cm in front of a converging lens with a focal length of 10 cm. Find the position q of the image and determine whether it is real or virtual.  Round the position to the tenths place and enter the answer in the first blank after the letter q.  Be sure to include the unit and leave a space between the numerical value and the unit. State whether the image is real or virtual in the second blank after “image type”.  Use all lowercase letters in the second blank. ANSWERS: q = [image] image type = [type]

With random error, if

Given two sample means, 

A test is done to see if three populations differ significantly in their population means. A sample of 5 subjects was taken from each of the three populations, and the following measurements were obtained: Population 1 Population 2 Population 3 32.43 3.36 23.8 75.55 82.37 81.84 29.03 53.74 62.47 48.44 6.07 90.84 32.12 26.71 8.57   What is MSE for an analysis of variance of these three populations? Round your answer to two decimal places. Round your answer to two decimal places.

Fiction:  Identify the story based on this detail.  This story features a black box and pieces of paper.  

True or False. My whiteboard has been erased before submitting my exam.

A beam of light strikes a sheet of glass at an angle of 28o with the normal in air (n = 1). You observe that violet light makes an angle of 12o with the normal in the glass. What is the index of refraction in this glass?  Round the answer to the hundredths place. ANSWER = [index]

If the height of the object in the previous problem is 5 cm, find the height of the image. Round the answer to the hundredths place and be sure to enter the unit.  Be sure to put a space between the numerical value and the unit. Enter the answer as a positive number.  ANSWER = [height]

A regulated natural monopoly that must set price equal to average cost will