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When an object is located very far away from a convex mirror, the image of the object is 15 cm behind the mirror. Decide where the image is located when the object is placed 5.6 cm in front of the mirror.
a child operating a radio-controlled model car on a dock accidentally steers it off the edge. the cars displacement 0.9
An atomic spectrum contains a line with a wavelength centered at 450nm, Estimate the lifetime of the excited state
consider three identical metal spheres a b and c. sphere a carries a charge of 4q. sphere b carries a charge of -7q.
A refrigerator has a 1000 W compressor, but the compressor runs only 20% of the time, If electricity costs $0.10/kWh, what is the monthly (30 day) cost of running the refrigerator
in a mass spectrometer singly-ionized atoms or molecules charge e are first accelerated by a potential difference v
Illustrate what is the frictional force acting on the disk? The disk will slide off the turntable if it is located at a radius larger than 16 cm from the axis of rotation. What is the coefficient of static friction?
A solenoid 110 cm long and 2.40 cm in diameter carries a current of 16 A. Find the length of wire forming the solenoid
while exploring a cave a spelunker starts at the entrance and moves the following distances 75.0 m north 300 m east 200
How many electrons must be removed from each of two 4.4-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
A mass m is connected to the bottom of a vertical spring whose force constant is k. Attached to the bottomof the mass is a string that is connected to a second mass m, as shown in the figure.
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2, What is theaverage speed over the entire trip
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 910 J/s for each square meter of its surface. The emissivity of the solar collector is e = 0.79. What equilibrium temperature does the collector reach? Assume that ..
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