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A single lens is used to cast an image on a screen that is 60 centimeter from the lens. The image is three times the size of the object.
A) Estimate the focal length of the lens
B) Construct a ray trace to verify your calculations.
An aircraft with a mass of 856 kg accelerates from 0 to 83 m/s in 9 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft
An electromagnetic wave in vacuum has an electric field amplitude of 220 V/m. Calculate the amplitude of the corresponding magnetic field
A spherical mirror is polished on both sides. When the convexside is used as a mirror, the magnification is +1/4. What is the magnification when the concave side is used as a mirror, the object remaining the same distance from the mirror?
A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 45.0kg woman to be able to stand on it withoutgetting her feet wet
A 4.4 kg box is lifted by a force equal to the weight of the box. The box moves upward at a constant velocity of 3 m/s. What is the power input of the force
It has been claimed that an insect called the froghopper (Philaenus spumarius) is the best jumper in the animal kingdom. How long did it take to reach that velocity
question1the diameter of the large piston of a hydraulic press is 20 cm. and the area of the small piston is 0.50 cm2.
a toboggan approaches a snowy hill moving at 15.0. the coefficients of static and kinetic friction between the snow and
An ancient manuscript reveals that a owner of a vineyard in Rome held 2 selions of plowed land plus a livestock area of 20 perches by 5 perches
Use the equation Q = (m)(c)(change in T) to calculate the heat "lost" by the hot water. Show your work using the problem-solving method shown in previous rubrics. The specific heat for water (c) is 4186 J/(kg * Co).
A lead ball weighing 10 N falls 0.8 m from rest into a bucket of sand. The ball stops after making a crater 0.2 m deep. According to the work-energy theorem the work done by the sand on the ball in bringing it to rest is...?
During a violent storm, the wind over a flat, 200 m2 roof has a velocity of 10 m/s. What is the net force on the roof
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