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estimate how many electrons there are in your bodymy approxmass is 794 kg make any assumptions you feel are necessary
given a stock solution of a food dye having a concentration of 10 x 10-5 and an absorbance of 0700 if a new solution is
light waves with two different wavelengths 632 nm and 474 nmpass simultaneously through a single slit whose width is
a cancer patient is undergoing radiation therapy in which protons with an energy of 12 mev are incident on a 025 kg
a motor has an armature resistance of 325omega if it draws820 a when running at full speed and connected to a 120-v
a projectile is launched with a speed of 40ms at an angle of 60 degrees above the horizantal use concervation of
a simple generator is used to generate a peak output voltageof 240 v the square armature consists of windings that are
a 985-l tank of argon gas at 2940 psi is allowed to vent into an airtight room that is and in which the temperature is
what are polymers how do they affect health and society what are some subtitles diagrams or ideas to describe
two trains are traveling toward each other at a constant speedof 10 mileshr at the point where the trains are 20
what is the structure of caffeine with the main focus on the basic nitrogen which is protonated at neutral ph determine
a lens is made of a transparent material having an index ofrefraction of 17 one side of the lens is flat and the
the equilibrium separation of h atoms in the h2 molecule is 0074nm calculate the energies and wavelenghts of photons
an object is dropped from rest from a height 32 times 106 mabove the surface of the earth if there is no air resistance
neglecting air resistance if you throw a ball straight upwith a speed of 20 ms how fast will it be moving when you
when a 250kg object is hanging vertically on a lightspringdescribed by hookes law the spring stretches 276cma what is
calculate the resultant velocity of an airplane that normallyflies at 200 kmhr if it encounters a 50 kmhr tailwind if
a wheel of mass m radius of gyration k spins smoothlyon a fixed horizontal axle of radius a which passes through a
a 75-w 110-v bulb is connected in parallel with a 40-w 110-vbulb what is the net
a 285 kg stunt boat is driven on the surface of a lake at aconstant speed of 135 ms toward a ramp which is angled at
excess electrons are placed on a small lead sphere with mass800g so that its net charge is -320 x 10-9ca find the
an ultracentrifuge is a rotating device that can produce acceleration up to 106 g if the distance from the center of
a car sits in anentrance ramp to a freeway waiting for a break in the traffic thedriver sees a small gap between a van
an aluminum-alloy rod has a length of 10000 cm at 20000c anda length of 10015 cm at the boiling point of water what is
a solenoid 130m long and 260cm in diameter carries a currentof 180a the magnetic field inside the solenoid is 230mt