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Assume that a certain concave spherical mirror has a focal length of 12.0 cm.
(a) Locate the image and find the magnification for an object distance of 30.0 cm. (If the image location or magnification is infinite, type INFINITY.)
(b) Do the same for an object distance of 12.0 cm
(c) Do the same for an object distance of 6.00 cm.
A certain core material has an actual permeability of 4.40x10^-2H/m. What is the relative permeability of the material
a positively charged particle with a charge of 10.2pc is suspended in equilibrium in the electric field between two
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. calculate total momentum of system and kinetic energy of centre of mass
How many grams of dry NH4Cl need to be added to 1.80 L of a 0.300 M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.84? Kb for ammonia is 1.8×10-5.
q1. a student holding two weights close to his chest is sitting on a frictionless chair the student and chair are
Two narrow slits are spaced .25 mm apart and are 60 cm from ascreen. what is the distance between the second and thirdbright lines of the interference pattern if the source is 546 nm ofmercury?
In a physics lab, light with a wavelength of 570nmtravels in air from a laser to a photocell in a time of 17.0ns. What is the wavelength of the light in the glass
a solenoid has a length of 30 cm a diameter of 2 cm and containsa total of 10000 turns if it carries a current of 5a.
A particular wire has a resistivity of 6.21×10-8 m and a cross-sectional area of 2.04 mm2. A length of this wire is to be utilized as a resistor that will develop 120 W of power when connected to a 6.50 V battery. What length of wire is required?
a transverse wave is propagated in a string stretched along the x-axis. the equation of the wave in si units is given
A 25000 kg rocket ship accelerates upwards by reason of constant 1.25MH of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75 seconds. What is the length of string.
A closely wound coil has a radius of 6.30 cm and carries a current of 1.70 A. How many turns must it have if, at a point on the coil axis 6.30 cm from the center of the coil
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