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consider a string consisting of two densities p1 in region 1 where xlt0 and p2 in region 2 where xgt0 a continuous
a substance has a melting point of 20deg c and a heat of fusion of 29 times 104 jkg the boiling point is 150deg c and
a brass rod is 487 cm long and an aluminum rod is 706 cm long when both rods are at an initial temperature of 0deg c
a glass tube that is bent into a rectangular u find an expression for the difference in the height h between the tops
the sun emits electromagnetic radiation that hits the earth the maximum wavelength that the sun emits is at 545nm at
which of the following devices use a diffraction grating in order to functiona eyeglass that correct for
what is the energy of a single photon of red light with a wavelength of 633 nma 10x 10-27b 31x 10-19c 41x10-40d
which of the following devices uses total internal reflection functiona eyeglasses that correct nearsightednessb fiber
which of the following best describe lenzs lawa the magnetic force always act perpendicular to the magnetic fieldb
one component of a device for producing a beam of spin polarized protons for use in nuclear research is a spherical
an airfoil is being tested at an altitude of 34000 ft standard atmosphere and a speed of 600 knots at a specific point
a diffraction grating has 1900 rulingscm on a screen 100 m from the grating it is found that for a particular order m
for the venture section calculate the velocitymass flow rate volume flow rate and the pressure at station two the
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