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When you are sitting in a chair looking at two objects that are above your eye level, it appears to you that object...
Two objects are sitting on a frictionless surface. Object 1 has mass mi, while object 2...
Two objects are sitting on a frictionless surface. Object 1 has mass mi, while object 2 has twice as large a mass, m2=2mı. You push with force F on object 1 for 3 s, and then push on object 2 for the same length of time with the same force F. A. After the push, what is the ratio of the momentum of object 2 to the momentum of object 1? Explain your answer. [5] a) 4/1 b) 2/1 c)...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite walls as shown below. Your drink is on the table 0.25 m from the mirror in front of you. How many images of the glass would you see in the mirror and at what distances? What are the sizes of the images? 3.0 m I TT TT 0.25 m b) (15 pts) A periscope is an optical device to see objects around obstacles, e.g....
2. You are looking at yourself in a makeup mirror. When you are close to the mirror, you look upright and huge (helpful when doing your makeup!). As you move away, your image gets even larger, th...
2. You are looking at yourself in a makeup mirror. When you are close to the mirror, you look upright and huge (helpful when doing your makeup!). As you move away, your image gets even larger, then disappears at about 30cm away from the mirror, then turns upside down and gets smaller as you move even further away. What type of mirror is this makeup mirror? a) convex; b) concave; c) flat; d) not enough information toe Justify your answer....
2. Another application of angular measurement in astronomy is measuring apparent angular size of celestial objects....
2. Another application of angular measurement in astronomy is measuring apparent angular size of celestial objects. Complete the follow ing parts a - f of this question. a. Hold a large coin, such as a quarter or half dollar, at arms length and position your self so that it just covers an object in your field of view. Now move the coin toward your eye, does the apparent angular size of the coin increase or decrease? b. Standing in the...
H. Two objects start moving at the same time Object A is initially at x r...
H. Two objects start moving at the same time Object A is initially at x r 8 m and starts moving to the left at constant speed of 2 m/s and object B is intially atx--2 m and starts moving to the right at a constant speed of 3 m/s a Use the coordinate axes on the right to plot the position vs time for both objects (for at least 4 seconds) then use your plot to identify the position...
This is a two part question. Part 1. To look closely at a small object, such...
This is a two part question. Part 1. To look closely at a small object, such as an insect or a crystal, you bring it close to your eye, making the subtended angle and the retinal image as large as possible. But your eye cannot focus sharply on objects that are closer than the near point, so the angular size of an object is greatest when it is placed at the near point (25 cm away from a “normal” eye)....
2.35 Why is it better to stand erect when you hold an object? A person holds...
2.35 Why is it better to stand erect when you hold an object? A person holds a 20kg object while either standing erect or bending over. The mass of the person above his lumbar-sacral disc (his torso) is 45 kg. When upright, the center of mass of the torso is (horizontally) 2 cm in front of his disc and that of the object is 30 cm in front of his disc. When bent, the center of mass of the torso...
b. Measure and record the smallest angle i. An object K and an observer at X...
b. Measure and record the smallest angle i. An object K and an observer at X are formed between lines C and D at E. shown below. Draw a line indicating a line of sight to an object L that lies 35° below object K on the plane of the paper as viewed by the observer at X. c. Based upon the diagram, what is the angle formed at point G between points F and H? j. Below is shown...
3) Imagine that you and a friend are sitting in two rolling chairs. Your friend pushes off your c...
3) Imagine that you and a friend are sitting in two rolling chairs. Your friend pushes off your chair with a force of approximately 170 N. Your friend weighs approximately 25% more than you. Estimate the velocities of you and your friend and how far you will roll after you push off. \a) Construct a pictorial representation of the process including coordinate axes and appropriate variables. List known information and identify the unknown(s). b) Is momentum conserved? How do you...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microsco...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
Two objects are sitting on a frictionless surface. Object 1 has mass mi, while object 2 has twice as large a mass, m2=2mı. You push with force F on object 1 for 3 s, and then push on object 2 for the same length of time with the same force F. A. After the push, what is the ratio of the momentum of object 2 to the momentum of object 1? Explain your answer. [5] a) 4/1 b) 2/1 c)...
Flat Mirrors a) (10 pts) You are sitting in a restaurant with mirrors on the opposite walls as shown below. Your drink is on the table 0.25 m from the mirror in front of you. How many images of the glass would you see in the mirror and at what distances? What are the sizes of the images? 3.0 m I TT TT 0.25 m b) (15 pts) A periscope is an optical device to see objects around obstacles, e.g....
2. You are looking at yourself in a makeup mirror. When you are close to the mirror, you look upright and huge (helpful when doing your makeup!). As you move away, your image gets even larger, then disappears at about 30cm away from the mirror, then turns upside down and gets smaller as you move even further away. What type of mirror is this makeup mirror? a) convex; b) concave; c) flat; d) not enough information toe Justify your answer....
2. Another application of angular measurement in astronomy is measuring apparent angular size of celestial objects. Complete the follow ing parts a - f of this question. a. Hold a large coin, such as a quarter or half dollar, at arms length and position your self so that it just covers an object in your field of view. Now move the coin toward your eye, does the apparent angular size of the coin increase or decrease? b. Standing in the...
H. Two objects start moving at the same time Object A is initially at x r 8 m and starts moving to the left at constant speed of 2 m/s and object B is intially atx--2 m and starts moving to the right at a constant speed of 3 m/s a Use the coordinate axes on the right to plot the position vs time for both objects (for at least 4 seconds) then use your plot to identify the position...
2.35 Why is it better to stand erect when you hold an object? A person holds a 20kg object while either standing erect or bending over. The mass of the person above his lumbar-sacral disc (his torso) is 45 kg. When upright, the center of mass of the torso is (horizontally) 2 cm in front of his disc and that of the object is 30 cm in front of his disc. When bent, the center of mass of the torso...
b. Measure and record the smallest angle i. An object K and an observer at X are formed between lines C and D at E. shown below. Draw a line indicating a line of sight to an object L that lies 35° below object K on the plane of the paper as viewed by the observer at X. c. Based upon the diagram, what is the angle formed at point G between points F and H? j. Below is shown...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
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