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1. A cowboy, 6.8 feet tall with his hat, views his full image in a plane mirror.
a. Find the image height of a man 1.9 m tall, standing 3.3 m from the ornament
2. A spherical silver Christmas tree ornament, 11 cm in diameter, acts as a mirror.
a. Find the image height of a man 1.9 m tall, standing 3.3 m from the ornament.
3. A small object is on the optical axis, 25.1 cm from a +18.0 cm lens. Find the image distance and magnification by computation.
In a heat conductivity experiment, a slab of silicon of thickness 2 x 10^-3m and area of 0.40m^2 seperates condensing steam(lv=540cal/g) at 100 degree C, Find the increase of entropy in the universe during one minute of this experiment
Two lenses have focal lengths of 25.0cm and -50.0cm and are separated by 20.0cm. Where is the final image formed
A steel cylinder of radius 5.0cm and length 5.0cm is placed in end-to-end thermal contact with a copper cylinder of the same dimensions. If the free ends of the two cylinders are maintained at constant temperatures of 85 C (steel) and 23 C (copper), ..
a dynamite blast at a quarry launches a rock straight upward and 1.7 s later it is rising at a rate of 15 ms. assuming
the transformer supplying power to an artists light sculpture provides 9600-v ac when supplied by 120-v ac. if there
A vertical tube open at the top contains 5.2 cm of oil (density 0.82 g/cm^3) floating on 5.2 cm of water. Find out the gauge pressure at the bottom of the tube.
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is rotational
An extremely thin film of soapy water (n = 1.30) sits on top of a flat glass plate with n = 1.11. What is the thickness of the film
The Near Earth Asteroid Rendezvous (NEAR), after traveling 2.1 billion km , is meant to orbit the asteroid Eros at a height of about 15km. What will be the period of NEAR as it orbits Eros
white light illuminates an oil film on water. viewing it directly from above it looks red. assume that the reflected
The drawings show three charges that have the same magnitude but may have different signs. Determine the magnitude of the net force on charge
A 68.1-kg basketball player jumps vertically and leaves the floor with a velocity of 1.92 m/s upward. (Take upward as positive and forward as positive.), What impulse does the player experience
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