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A concave shaving mirror has a radius of curvature of +39.9 cm. It is positioned so that the (upright) image of a man's face is 1.54 times the size of the face. How far is the mirror from the face?
When on the ground, Ian's weight is measured to be 692 N. When Ian is on an elevator, his apparent weight is 796 N. What is the net force on the system
A simple camera telephoto lens consists of two individual lenses. The objective has a focal length f1 = + 37.0 cm. What is the magnification of the lens combination
A firefighter with a weight of 702 N slides down a vertical pole with an acceleration of 2.90 m/s2, directed downward. What are the magnitudes and directions (choose the positive direction up) of the vertical forces
A resonant circuit using a 220 nF capacitor is to resonate at 18.0 kHz. The inductor in the circuit is to be a solenoid, How many loops will the inductor contain?
A ceiling fan with 80-diameter blades is turning at 68. Suppose the fan coasts to a stop 27 after being turned off. What is the speed of the tip of the blade 10 after the fan is turned off.
A free electron and a free proton are placed in an identical electric field. which of the following statement are true?
A 220g baseball is pitched at 25m/s spinning at 43rad/s. What fraction of its kinetic energy is rotational
A roller-coaster car has a mass of 504 kg when fully loaded with passengers Point B of the rollercoaster has a radius of 15.0m, What is the maximum speed the vehicle can have
A snowman is made of three spheres of radii R,2R,3R with the largest sphere on the bottom and the smallest sphere on top. Find the center of mass of the snowman
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
The drawing shows two crates that are connected by a steel (Young's modulus 2.0 x 1011 N/m2) wire that passes over a pulley. determine the change in length of the wire
Two identical capacitors are connected in parallel to an ac generator that has a frequency of 579 Hz and produces a voltage of 24 V. What is the capacitance of each capacitor
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