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If a +1 micro-coulomb charge is next to a +4 micro-coulomb charge, the magnitude of the repulsive force on the +1 micro-coulomb charge is the same for both particles right?
A certain loudspeaker system emits sound isotropically with a frequency of 2290 Hz and an intensity of 0.795 mW/m2 at a distance of 5.43 m. Assume that there are no reflections.
A pyramid with horixontal square base, 5.5 m on each side, Calculate the total electric flux through the pyramid four slanted surfaces
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
a woman can read the newspaper if it is held no closer than 57.2 cm from teh eye. what should the focal length of a
A charge of 2.65mC is placed at each corner of a square 0.450m on a side, Determine the direction of the force on a charge
A cryogenic storage container holds liquid helium, which boils at 4.2 K. Suppose a student painted the outer shell of the container black, turning it into a pseudo-blackbody, and that the shell has an effective area of 0.40 m2 and is at 3.3 102 K.
Drawing on Erastothenes' method, if two observers are due north and south of each other and are separated by 490 km, what is the circumference of their spherical world if they see the same star on their meridian at altitudes of 29 degrees and 45 degr..
Imagine two 1.5 bags of protons, one at the earth's north pole and the other at the south pole. A. Calculate the gravitational attraction that each bag exerts on the other.
Two race cars are traveling in the same direction, one in front ofthe other, 351 m apart, at a speed of69.2 m/s. The driver of the car in frontsounds his horn. How much time elapses before the other driverhears the horn?
A device used in radiation therapy for cancer contains 0.52 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the horizontal distance D traveled by the projectile
A 1432.0 g mass is on a horizontal surface with μk = 0.44, Calculate the distance the spring was compressed. What is the velocity of the mass as it loses contact with the spring
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