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An object is 15 centimeter in front of a concave mirror with a focal length of 22 centimeter.
A. Locate the image.
B. Evaluate is the image upright or inverted?
A spring is compressed by 0.0592 m and is used to launch an object horizontally with a speed of 3.21 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
A musician finds that a simple pipe resonates with a fundamental standing wave of of 440Hz in a room at temperature 21 C. Find the temperature in the room
A small but measurable current of 8.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm. calculate the current density and electron drift speed
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two parallel rubber bands. It takes a force of 15 N to stretch either one of these bands 1.0 cm.
A net force of 20 N accelerates a 9-kg mass over a distance of 20 m. What is the increase in kinetic energy of the mass
A certain charge Q is divided into 2 parts. One is q and the other Q-q. If the 2 charges are then separated by a distance r, what should be the relation among Q and q such that the electrostatic repulsive force is maximum among the charges?
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 7.63 m long, weighs 11.1 N, and rotates at 275 rev/min.find its rotational inertia about the axis of rotation
Over a year's time, a person receives a biologically equivalent dose of 21 mrem (millirems) from cosmic rays, What is the person's absorbed dose in rads
A student doing an experiment pours 0.110kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.170kg of water. What was the initial temperature of the shot
Over a certain region of space, the electric potential is V = 5x - 5x2y + 2yz2. (Use any variable or symbol stated above as necessary.) What is the magnitude of the field at the point P, which has coordinates (5, 0, -5) m
A container with a one-liter capacity at 27°C is filled with helium to a pressure of 2 atm. (1 atm = 1.0x10^5 N/m^2.) How many moles of helium does it hold
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