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a 10-cm-long thin glass rod is uniformly charged to 50 nc a small plastic bead charged to - 54nc is 45 cm from the
the circuit consists of a battery with a fixed voltage v a resistor with resistance r and a capacitor with capacitance
a radio-frequency em plane wave propagates in the x direction your radio gets the best reception when its antenna is
the classical picture of the hydrogen atom has a single electron in orbit a distance 00529nm from the proton calculate
a 90 cm-diameter disk emits light uniformly from its surface 20 cm from this disk along its axis is an 70 cm-diameter
antenna a and antenna b emit coherent radio waves antenna a is 125m due north of antenna b constructive interference
a thin copper plate of mass m has a shape of a square with a side b and thickness d the plate is suspended on a
a speck of clay of mass m 001 kg strikes and stick to a wooden block of mass m 099 kg which rests on a frictionless
a 01 kg ball is thrown towards a 03 kg rod that is 075 m long and hanging vertically from a frictionless hinge at its
1 find the force acting on the roof of a 7m x 7m airtight building due to the difference in air pressure created during
a rectangular channel n0012 305m wide laid on a slope of 00049 carries 136 m3s the channel is to be contracted to
a 30-mph wind blows at an angle of 8 degrees to the plane of a signboard that is 12ft long by 2 ft wide using cl052 and
what is the minimum amount of electrical energy required by the refrigerator to carry out this process if it operates
an infinitely long line of charge has a linear charge density of 450times1012cm a proton is at distance 120 cm from
give four examples two of each type of optical devices which are best understood using either geometric optics or
describe two ways that the resonant circuits in a radio are useful in helping to receive the broadcast from a single
a single-turn current loop carrying a current of 482 a is in the shape of a right triangle with sides 728 121 and 141
a person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 332 db
a wire that is 200 m long and carrying a current of 100 a is at right angles to a uniform magnetic field the force
how do i find the magnitude of a magnetic and electric field at a certain time the erms and brms are given as well as
two pipes of equal length are each open at one end each has a fundamental frequency of 480 hz at 300 k in one pipe the
a 2500 kg satellite is to be launched and put in orbit at 750km above the surface of the earth what gravitational force
what is the electric force between a glass ball that has 29 microc of charge and a rubber ball that has -47 microc of
a uniform gravitational field calculate the reimann curvature for the metric ds2-1gx2dt2dx2dy2dz2 thereby showing this
a harmonic wave travels along an ideal rope from left to right at the position wersquove marked as zero meters we