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A lens is made of a transparent material having an index ofrefraction of 1.7. One side of the lens is flat, and the otherconvex with a radius of curvature of 28cm.(a) Find the focal length of the lens. (b) If an object is placed 97 cmin front of the lens, where will the image be located?
A 390 g glass coffee cup is at a room temperature of 20?C. It is then plunged into hot dishwater at 80 ?C. how much heat does the cup absorb
0.125kg of water at 85.0 degrees is poured into an insulated cup containing 0.240kg of ice initally at 0 degrees. Calculate the mass of liquid
A tennis ball of mass m = 0.078kg and speedv = 29m/s strikes a wall at a 45? angle and rebounds with the same speed at 45?
A boy is on a Ferris wheel, which takes him in a vertical circle of radius 7.6 m once every 15.0 s. What is the angular speed of the Ferris wheel
Estimate the molar heat of vaporization of a liquid whose vaporpressure doubles when the temperature is raised from 85C to95C
A ship sets out to sail to a point 156 km due north. An unexpected storm blows the ship to a point 118 km due east of its starting point. How far should it now sail to reach its original destination.
An airplane is in level flight at a velocity of 158 m/s and at an altitude of 1300 meters when one of its wheels falls off. What is the vertical velocity of the wheel
A mass M is suspended using two cables which make angles of theta_1 and theta_2 with the horizontal across the top. What is the tension (T_2) is the right-handed cable
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. what is the intensity of the light wave
A moving particle encounters an external electric field thatdecreases its kinetic energy from 8920 eVto 7400 eV as the particle moves fromposition A to position B. The electric potentialat A is -52.0 V, and the electricpotential at B is +26.9 V.
An electron is accelerated from rest by a potential difference of 440 V. It then enters a uniform magnetic field of magnitude 220 mT with its velocity perpendicular to the field. Calculate the radius of its path in the magnetic field
A ball is thrown from a window with Vo=2m.s at an angle of 53 degrees ABOVE the horizontal. From what height was the ball thrown
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