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Question: An object is placed 14.6 cm in front of a concave mirror with a focal length equal to 3.00 cm. (a) Find the location q (cm) of the image. (b) Find the magnification M. Give the answers to 2 significant figures. Be sure to include the correct signs on the answers.
A dead tree is initially stationary and there is a 30.0-degree angle between the tree and the vertical, How fast is the top of the tree moving (in m/s) just before it hits the ground
A person has severe hearing loss that reduces the intensity in his inner ear by 31.5 dB. What amplification factor is needed for this person
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
You are holding a compass 3.50 m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. find the magnitude of the current carried by the wire
What are the original charges on each sphere
What is the mass of nitrogen in an nitrogen tank at 20C if the tank has a volume of 0,20m^3 and nitrogen pressure in the tank is 4,0 x 10^6 N/m^2
You see a bolt of lightning strike the ground. Exactly 37 seconds later you hear the thunder. how far away is the lightning
At a distance of 7.0 km from a radio transmitter, the amplitude of the radiated electric field of the radio transmissions is measured to be 0.20 volts/meter. what is the total power emitted by the radio station
A light bulb is connected to a 240 Vwall socket. The current in the bulb depends on the time taccording to the relation I = (2.121 A) sin[ (439.6Hz) t ]. What is the frequency of the alternating current
A very thin sheet of plastic (n=1.65) covers one slit of a double-slit apparatus illuminated by 640nm light. What is the (minimum) thickness of the plastic
(a) Three point charges, A = 2.2 µC, B = 7.5 µC, and C = -3.9 µC, are located at the corners of an equilateral triangle. Find the magnitude and direction of the electric field at the position of the 2.2 µC charge.
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. What is the minimum velocity so the string will not go slack as the ball moves around the circle
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