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calcium carbonate caco3 can be in two different solid phases calcite or aragonite which phase is more stable at room
given that the latent heat of watersteam is approximately 41000 jmol at what pressure will water boil at 50 degress
you stand at the center of a carousel spinning at rate w you throw a ball horizontally with velocityvonbspnbspnbsp and
a gymnast with mass m1 49 kg is on a balance beam that sits on but is not attached to two supports the beam has a mass
two stretched cables both experience the same stress the first cable has a radius of 31 times 10-3 m and is subject to
in 0584 s a 116-kg block is pulled through a distance of 302 m on a frictionless horizontal surface starting from rest
a sinusoidal voltage e200sin314t is applied to a resistor of 10 ohm resistance calculatei rms of the voltageii rms of
a luminous object is 480m from a wall you are to use a concave mirror to project an image of the object on the wall
a aingly-ionized lithium has a nucleus of charge 3e and two electrons use the variational principle to estimate the
a village maintains a large tank with an open top containing water for emergencies the water can drain from the tank
an airplane is cruising at an altitude of 10 km the pressure outside the craft is 0311 atm within the passenger
a person who weighs 628 n is riding a 916 n mountain bike suppose the entire weight of the rider and bike is supported
a simple pendulum is made from a 0617 m-long string and a small ball attached to its free end the ball is pulled to one
a steady current i flows through a wire of radius rnbsp find the magnetic field inside and outside the wire if a
a metal block of mass 1220 kg is hanging from a string the tension in the string is 7712 n the block is submerged in a
nbspa spherical ball with a radius of 2660times10-1 m is completely submerged in a fluid that has a density of
how long does it take electrons to get from a car battery to the starting motor assume the current is 310 a and the
when an ac source is connected across a 150- resistor the rms current in the resistor is 710 aa find the rms voltage
find the frequency of a certain blue-green light that has a wavelength of 600 nm in airnbsp take the speed of light
cosnider children playing on a merry go around that is 6m in diamter turning at 10 revelutions per minute what will the
a string of length 12m vibrates in 7 loops at a frequency of 70hznbsp show workanbsp what is the wavelengthbnbsp at
list the differences between radio waves and microwaves in terms of wavelength wave frequency and health hazards this
two long parallel wires are separated by 389 mm the current flowing in one of the wires wire 1 is twice that in the
suppose that the magnetic field of the earth were due to a single current moving in a circle of radius 2910 km through
an electron has a spin magnetic moment of magnitude 9285middot10ndash24 a m2 consequently it has energy associated