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Q1. Sunlight enters a room at an angle of 32 above the horizontal and reflects from a small mirror lying flat on the floor. The reflected light forms a spot on a wall that is 2.0 behind the mirror. If you now place a pencil under an edge of the mirror nearer the wall, tilting it upward by 5.0, how much higher on the wall is the spot?
Q2. The diameter of the Sun is 1.39x10^9m. Its distance to the Earth is 1.50x10^11 m. Astronomers are using a refractor telescope to observe it, of that the objective has a diameter of 10.0 cm anf focal length of 1.00 m.
a). Try to discover where the image of the Sun is located after the objective.
b). compute the lateral magnification of the Sun by the objective, according to the object distance and image distance.
c). what's the size of the Sun's image formed by the objective, according to the lateral magnification.
Q3. The Saturn's ring has a diameter of about 2.00x10^5km and the distance between the Earth and the Saturn is 1.40x10^9km. Based on your calculation on resolution power, will the ring be visible in telescope?
A tennis ball of mass 57 g travels with velocity m/s toward a wall. After bouncing off the wall, the tennis ball is observed to be traveling with velocity m/s.
As expected, the predictions of Coulomb's law are well confirmed. You find that the forces are: repulsive? or attractive? 2. and that the magnitude of each force is?
Suppose you performed the experiment in atmosphere of Argon at 25 deg. C, How many electrons have been attached to, or detached from the initially neutral plastic sphere
Light of wavelength 655 nm is used to illuminate normally two glass plates 20 cm in length that touch at one end, How many bright fringes appear along the total length of the plates
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A train is travelling up a 4.0 incline at the speed of 3.25 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily.
What is coefficient of kinetic friction
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In an X ray scattering measurement the first order diffraction peak is observed at angle 1= 17.4 deg. What is the angle of the third order peak
A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 8.1 m/s, What was the initial direction of the ball
A transformer has 350 turns and 94 turns for the primary and secondary respectively. what is the output voltage of the secondary
What is a unique characteristic of water between 0 and 4 degrees celcius - Need a question pertaining to heat and temperature dealing of course in physics.
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