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An object is located 13.9 cm in front of a convex mirror, the image being 8.89 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location. The image of this second object has the same height as the other image. How far in front of the mirror is the second object located?
In a high speed elevator, passengers accelerate straight upward from rest to 15 km/hr in 5.25 seconds. What is the average acceleration of the passengers in this elevator?
An alpha particle (the nucleus of a helium atom formed by 2 protons and 2 neutrons, What would be the force on the alpha particle if it were traveling parallel to the magnetic field lines
A bullet of mass m= 0.0230 kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.30 kg.obtain the speed of the bullet just before it hits the wood
an infinite line charge of uniform linear charge density -1.1 cm lies parallel to the y axis at x -1 m. a point
A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. What is the frictional force on the box
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.76 m. With the string hanging vertically, the object is given an initial velocity of 2.8 m/s parallel to the ground..
The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.25 102 N exerted horizontally, evaluate the coefficient of kinetic friction
An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. What is the pressure in the narrow section of the pipe
A tuning fork with a frequency of 440 Hz is held just above the top of a uniform glass tube containing water. What is the speed of sound in air
A battleship is using sonar (reflected underwater sound signals) to detect the presence of nearby submarines. How far away from the battleship is the submarine
A Styrofoam box has a surface area of 0.86 m2 and a wall thickness of 2.0 cm. determine the thermal conductivity of the Styrofoam
Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m. What is the equation of the standing wave?
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