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A beam of light is incident on a plane mirror at an angle of 30 degrees to the normal of the mirror. What is the angle between the incident beam and reflected beam?
A 62 g Frisbee is thrown from a point 1.3 m above the ground with a speed of 15 m/s. What was the reduction in the mechanical energy of the Frisbee-Earth system because of air drag
An air-track glider attached to a spring oscillates between the 11.4 cm mark and the 57.27 cm mark on the track. What is the maximum speed of the glider in cm/s
The max wavelength of light, which emits electrons is 460 nm. Calculate work function of sodium
to combat wasteful habits we often speak of "conserving engery", by which we mean turning off lights, find the difference in energy conservation and conserving energy
what is the lumberjack's speed relative to the shore? Neglect friction between the log and the water.
A bullet of mass 0.018kg traveling horizontally at a high speed of 290m/s embeds itself in a block of mass 4 kg that is sitting at rest on a nearly frictionless surface.
A spherical mirror is to be used to form an image 5.20 times the size of an object on a screen located 4.20 m from the object, What is the required radius of curvature of the mirror
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
Suppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable
Express the power in terms of some or all of the variables given in the problem introduction.
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
An object is 5.7 cm from a spherical concave mirror. If the image is 4.7 cm tall and 10 cm from the mirror, how tall is the object
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