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A concave mirror is to form an image of the filament of a headlight lamp on a screen 8.00 m from the mirror. The filament is 6.00 mm tall, and the image is to be 24.0 cm tall.
a) How far in front of the vertex of the mirror should the filament be placed?
b) Is the image real or virtual?
c) Is the image upright or inverted?
d) What should be the radius of curvature of the mirror?
e) Suppose you want to reverse the image given by the above mentioned mirror at the same location. Should you add another concave mirror or a convex one? Make a sketch showing where you would place the second mirror.
A small square loop carries a 48A current. The on-axis magnetic field strength 43cm from the loop is 6.8nT
A uniform plank of length 4.30 m and weight 226 N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 437 N walk on overhanging part of the plank be..
An electric field is set up between two parallel plates, each of area 2.2 m2, by putting 1.0 C charge on one plate and the -1.0 C charge on the other. The plates are separated by 4.0 mm. What is the magnitude of the electric field between the plates ..
A tiny sphere with a charge of q = +6.0 µC is attached to a spring. Two other tiny charged spheres, each with a charge of ?4.0-µC, are placed in the positions, in which b = 3.8 cm. The spring stretches 5.0 cm from its previous equilibrium position..
The wave function for a wave on a taut string is given by y(x,t)=(0.350m) sin (10pi(t)-3pi(x)+pi/4), What is the energy contained in each cycle
In a bicycle race, the leader is travelling with a constant velocity of 11.10 m/s and is 10.0 m ahead of the second-place cyclist. The second place cyclist has a velocity of 9.50 m/s and an acceleration of 1.20 m/s squared. How much time elapses b..
A disk-shaped merry-go-round of radius 2.03m and mass 185kg rotates freely with an angular speed of 0.671rev/s. What is the final angular speed of the merry-go-round
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What is the average kinetic energy of an ideal gas.
If I end up with a velocity of 1 m/s going west, am I heaver or lighter than you? What is your mass, and what is your final velocity?
Suppose that you hear a clap of thunder 15.5 s after seeing the associated lightning stroke. How far are you from the lightning stroke
An object of interest is 3 mm from an objective for a compound microscope with a lens power of +250 D. what is the magnifying power of the eyepiece
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