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An object is located 12 centimeter in front of a curved mirror. The magnification of the image is -3.0. Evaluate what is the focal length of the mirror?
a spring is hanging vertically from a ceiling. assume the springs mass is negligible. i hang a 0.5kg mass on the spring
A 3.0-cm object is placed 8.0 cm in front of a mirror. The virtual image is 4.0 cm further from the mirror when the mirror is concave than when it is planar. Determine the focal length of the concave mirror
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 20 MW and lasts 2.3 ns. What is the total energy of the pulse
Long Straight Wire A long straight wire has fixed negative charge with a linear charge density of -3.1 nC/m. The wire is to be enclosed by a thin,nonconducting cylinder of outside radius 1.6 cm, coaxial with the wire.
Two identical conducting spheres are separated by a fixed center-to-center distance of 47cm and have dissimilar charges. Initially, the spheres attract each other by a force of 0.095 N.
An investigator collects a sample of a radioactive isotope with an activity of 4.4×105Bq . 72hourslater, the activity is 1.2×105Bq. What is the half-life of the sample
a car is moving with constant velocity v and has wheels of radius r. the car drives over a clump of mud and the mud
A charged particle enters a uniform magnetic field and follows the circular path shown in the drawing. The particle's speed is 115m/s, the magnitude of the magnetic field is 0.719 T, and the radiusof the path is 656 m. Determine the mass of the parti..
A 2100 kg truck traveling north at 41 km/h turns east and accelerates to 54 km/h, What is the change in the truck's kinetic energy
The motion of a particle is given by x = A sin^3(?t). What is the amplitude of the particle's motion
After a 0.813 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.46E+6 m/s. Through what angle was the photon scattered
A woman is 1.7 m tall and has a mass of 51 kg. She moves past an observer with the direction of the motion parallel to her height. The observer measures her relativistic momentum to have a magnitude of 1.8 x 1012 kg·m/s. What does the observer measur..
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