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Question1
1) Give an everyday instance that illustrates the difference between acceleration and velocity. Give a case of uniform and accelerated motion. 2) Why do people fault what is in diet energy drinks for actual energy? 3) Think about your energy intake today. Pick one food and identify chain of energy that led to it. What trophic level do you eat from most? Where will energy that you ingest eventually wind up? 4) List and give an instance of an object around you for of each of different types of chemical bonds
Question2
A biconcave lens made from glass with n=1.5. The radii of curvatures are 20cm and 10cm, and thickness is 5cm. An object of height 2cm is placed 8cm to left of surface of the lens
a) Solve this problem considering two refractions taking place at the air to glass after that glass to air boundaries. In other words, don’t use lens equations. Explain final image; location, nature (real/virtual), size, orientation (erect/inverted).
b) Answer part (a) by using a thin lens approximation. Match up to your results with the results found previously and comment.
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.
Two capacitors, one 17.5 ?F and the other 12.2 ?F are connected in series across a 15 V battery. What is the charge stored on the 12.2 ?F capacitor
Problem on elevator
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC. what is the final temperature of the iron block
Prism of refractive index 1.53 is placed in water of refractive index 1.33. If the angle of the prism is 60. Calculate the angle of minimum deviation in water
A 50 g Super Ball travelling at 28 m/s bounces off a brick wall and rebounds at 18 m/s. A high-speed camera records this event. If the ball is in contact with wall for 5 ms, what is the magnitude of the average acceleration of the ball throughout ..
A series RCL circuit contains a 4.99-µF capacitor and a generator whose voltage is 11.6 V. At a resonant frequency of 1.20 kHz the power delivered to the circuit is 24.1 W. Find the value of the inductance
Two particles with masses 2m and 5m are moving toward each other along the x axis with the same initial speeds vi. Find the final speeds of the two particles in terms of vi. particle 2m
When a 6.0 µF capacitor is connected to a generator whose rms output is 30 V, What is the frequency of the source
A shell is fired from a gun with a muzzle velocity of 25 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
You need to push a box across the room. which side of the box should be the side down on the floor
A certain kind of glass has nblue = 1.560 for blue light and nred = 1.510 for red light. what is the angle between the red and blue light
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