Two symmetrical converging lenses made from the same material (index of refraction of 1.52) are 30.0 cm apart, as shown on the diagram. An object is placed 46.0 cm to the left of Lens 1 (L1). (a) Draw the Ray Diagrams (b )Locate the final image of the object relative to lens 2 (L2).  (c) Find the overall magnification. (d) Calculate and describe the image characteristics with respect to the original object.

The two masses m 1 = 3 . 00   k g and m 2 = 2 . 00   k g in Fig. 2 are released with a speed 4 . 00   m s . (a) If the horizontal surface is frictionless, (a) what is the speed of m 2 after m 2 has fallen 1 . 50   m ? (b) If the coefficient of the kinetic friction is μ k = 0 . 500 on the horizontal surface, what is the speed of m 2 after m 2 has fallen 1 . 50   m ? If the coefficient of kinetic friction on the horizontal surface is unknow and m 2 is moving with a speed of 3 . 90   m s after m 2 has fallen 1 . 50   m , (c) how much work is done during this time interval by the frictional force on m 1 and (d) what is the kinetic friction of the surface? (e) What is the distance that m 2 has fallen when the system comes to rest if the coefficient of kinetic friction of the horizontal surface is the one determined in (d) and the length of the horizontal surface and the height of the surface is large enough for the process? (The string is an ideal string, and the pulley is an ideal pulley.) t3_q12_phys2425.v01.docx

Test 3 will be offered from 11:59 pm on 8/5/2026 to 11:59 pm of 8/6/2026. Once you start the test, you have 110 minutes to finish it. Please do the following to take Test 3:(1) Log into Blackboard with your STC credentials.(2) Click on Phys. 2425.SV1.(3) Scroll down to Test 3 and click on Test 3. (You need to enable Honorlock to take the test.)(4) You have 110 minutes to take the test.(5) Test 3 will cover chapters 7, 8, and 9 of the textbook, i.e. Lecture_7, and Lecture_8 of the lecture notes.(6) You can use calculators during the test but it is a closed book test. You can use the formula sheets provided by me during the test. (I have emailed you the formula sheets in one of my previous emails. Please print the formula sheets out and bring it to the test.)(7) There are 10 multiple choice questions and 3 free-response questions in Test 3. The highest possible score for Test 3 is 15.(8) For multiple choice questions (question 1 to question 10), you only need to select the correct answers. For free-response questions (question 11 to question 13), you need to show the procedures to obtain your answers. You input the procedures through the boxes below the free-response questions and it would not get full credit for solutions that only have answers but not procedures to obtain the answers.(9) After you complete the test or before the 110 minutes are up, you make sure to submit your test. Please don’t email me your solutions for free-response questions.The above regulations are just for protecting honest students. Being honest is our best help to make the whole class to be fair and consistent to everyone. Hope this is understandable. Have a safe, pleasant, and successful semester.

A positive charge, +q{“version”:”1.1″,”math”:”+q”}, and a negative charge with the same magnitude, -q{“version”:”1.1″,”math”:”-q”}, are positioned on the vertical axis, as shown.  Point P is equidistant from both charges.  Which diagram correctly displays the construction of the net electric field, E→{“version”:”1.1″,”math”:”E→”} , at point P ?

Two static (fixed) electric charges are separated by some distance, as shown in the diagram. The direction of the net electric field at point P is

An incompressible fluid flows through a pipe of varying radius as shown below. Compared to the fluid at point P, the fluid at point Q has

In the U-tube below, the density of the fluid that fills the upper part of the left-hand portion is ρA=831 kg/m3{“version”:”1.1″,”math”:”ρA=831 kg/m3″}. The density of the fluid that fills the right-hand portion, ρB{“version”:”1.1″,”math”:”ρB”}, is unknown. Both ends are open to the atmosphere. The heights of three different sections are labeled on the diagram.  The lowest section has height h3 = 5.0 cm.  The middle section has height h2 = 3.0 cm.  The upper section has height h1 = 7.0 cm.  The density of the fluid on the right side of the U-tube is most nearly

A ray of light is passing from crown glass into water, as shown. (ncrown glass = 1.52,  nwater = 1.33) If the angle that incident ray makes with the normal to the interface is θi=650{“version”:”1.1″,”math”:”θi=650″}, then which statement best describes the angle of the refracted ray with the normal, θr{“version”:”1.1″,”math”:”θr”}?

 The pump shown in the figure maintains an absolute pressure, P, as water flows through the pipes. The water exits (to the atmosphere) the pipe at point C at a speed of 23.7 m/s. Assume that the water flows as an ideal fluid and that it completely fills the pipes at all times. At A the pipe has a cross-section diameter of 7.00 cm as shown. At all points between B and C, the pipe has a cross-section diameter of 4.50 cm. The diagram is not to scale. a) Determine the absolute pressure P, in kPa, that is maintained by the pump (9 pts) b) Determine the volumetric flow rate (Q) of the water at point A. (3 pts)  

Identify the Populist Party chairman who in 1896 declared that the party should abandon the Omaha Platform and unite with the Democratic Party around the idea of “free silver”?