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suppose that you have a certain spring to which you add weights the spring does not stretch until you add 10 n but it
radioactive decaythe radionuclide 64cu has a half-life of 127 ha how much of an initially pure 550 g sample of 64cu
charges accelerated and then subject to b-fielda a proton is given kinetic energy of 0200 kev i what potential
consider an ac emf source connected to a resistor if the average power dissipated is 455 w and the rms current is 528
what is a stationary state in quantum mechanics and if our system is in stationary state we have time independent
a plane on a mission to deliver food to hungry people is traveling parallel to the ground at a speed of 3400 kmh as the
for a saturated soil sample with a void ratio of 0720 and a saturated density of 1820 tm3calculate the volume of solids
a car traveling at 600 kmh collides with a stationary truck the car has a mass of 8400 kg and the truck has a mass of
it takes 212 seconds to hoist a rescue diver of mass 81 kg from the ocean surface to a helicopter hovering 208 meters
a uniform circle of massnbspm1nbsp 310 kg a uniform triangle of massnbspm2nbsp 130 kg and a uniform square of
1 a 100-kg box on the right and a 45-kg box on the left are tied together by a horizontal cable the 100-kg box is acted
because gasoline is less dense than water drums containing gasoline will float in water suppose a 210-l steel drum is
how are methanol and ethanol similar in chemical and physical properties and how are they different which one is used
refractionsunlight strikes the surface of a lake at an angle of incidence of 30o at what angle with respect to the
polarizationa beam of unpolarized light is sent through two polarizing sheets placed one on top of the other what must
pair productiona gammaray interacts with the strong electric field of a nucleus and undergoes pair production the
de broglie wavelengtha what is the kinetic energy of electrons whose de broglie wavelength matches the size of a
industrial buildings have fresh air requirements depending on the occupancy level and its function assume 15000 cfm of
in the following reactionnbspmg 2hclnbsprarr mgcl2nbsp h2how many liters of h2nbspwould be produced if you started
do you think there is a point at which volume cannot be decreased any further for this sealed container of gas explain
1 our lab for this unit investigated factors that influence the speed at which solute dissolvesnbspthe speed of
bottled water consumption was reported to be 290 gallons per person in the us in 2007 this is equivalent to how many
a 250 mg sample of co2nbspcollected from a small piece of wood at an archaeological site gave 1020 counts over a 24 h
how is pmma material made into an acrylic heel describe process from start to finish using pmma
draw the mechanism of witting reaction betweennbspethylidene triphenylphosphorane