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The image of a crayon appears to be 21.5 cm behind the surface of a convex mirror and is 2.39 cm tall. The mirror's focal length is 40.9 cm.
a) How far in front of the mirror is the crayon positioned? Answer in units of cm.
b) Calculate the magnification of the image.
c) How tall is the actual crayon? Answer in units of cm.
A 2.0 kg block slides on a frictionless 25o inclined plane. What are the magnitude and direction of the block's acceleration
Explain the phenomenon of resonance. Use the phase of the interfering waves to determine the conditions for and location of constructive and destructive resonance
The United States currently has approximately 287 Numbering Plan Areas (NPAs) in service, corresponding to geographic regions. Each NPA is identified by a three-digit code
The photoelectric threshold wavelength of a tungsten surface is 272 nm. What is the threshold frequency of this tungsten
an object with a mass of .40 kg moving with a speed of 25 m/s is brought to rest after sliding on a rough surface. What is the stopping distance of the object
when a 0.045 kg golf ball takes off after being hit, its speedis 41m/s, how much work is done on the ball by the club
A flywheel is a solid, rotating disk that is sometimes used to store energy. The moment of inertia for a solid disk is, whereMis the mass andR is the radius. For a flywheel that weighs 10 kg and has a radius of 0.2 m, determine the following.A) If a ..
An ocean liner leaves New York City and travels 12.0° north of east for 111 km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the directions.
The Potential in a region of space is given by V = (100 V)[(x2 - y2)/z2], where x, y, and z are in meters. Find the Electric Field vector at a point (x, y, z) = (1.0 m, 2.0 m, 3.0 m)
The lowest pedal note on a particular large pipe organ has a fundamental frequency of 15.7 Hz. What is the length of pipe between the sounding hole and the open end
a pump on the ground floor of a building can pump up water to fill a tank of volume 30 m3 in 15 min. if the tank is 40m
A 45.5-g golf ball is driven from the tee with an initial speed of 47.3 m/s and rises to a height of 30.4 m. evaluate the kinetic energy of the ball at its highest point
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