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A mirror produces an image that is located 22.00 cm behind the mirror when the object is located 5.50 cm in front of the mirror.
(a) What is the focal length of the mirror?
__________cm
(b) Is the mirror concave or convex?
________
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
A person does 100 joules of work of pulling back the string of the bow. What will be the original speed of a 0.5 killogram arrow when it's fired from the bow.
Three capacitors are connected in series. The equivalentcapacitance of this combination is 3.03µF. Two of the individual capacitances are 6.30 µF and 9.09µF. What is the third capacitance (in µF)?
A chair of weight 130 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 45.0 fixed at an angle of 39.0below the horizontal and the chair slides along the floor.
A 5.57-kg object passes through the origin at time t = 0 such that its x component of velocity is 4.95 m/s and its y component of velocity is -2.94m/s. What is the kinetic energy of the object at this time
A beam of neutral hydrogen atoms with a speed of 104 m/s along the x-axis enters a 1 m long region, compute The acceleration of the atoms while in the magnetic field region
When two resistors are connected in parallel across a battery of unknown voltage, What current will be supplied by the same battery
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
a dense rubber buoy is attached to a lead weight when it is accidentally lost overboard from an ocean going vessel. the
A jumper in the long-jump goes into the jump with a speed of 12m/s at an angle of 20 deg above the horizontal. How long is the jumper in the air
A "light-year" is the distance light (speed = 2.998 108 m/s) travels in one year. What is the speed of light in AU/h
John who is ice skating eastward collides with Mary who is ice skating northward. What was John's initial speed
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