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a what is the mass in grams of 412 moles of caco3 how many moles are in 750g of
a particle p traveling with a speed of vpi 3 ms hits and scatters elastically from another particle n initially at
two bodies of masses 201 kg and 146 kg move along the x-axis in opposite directions with velocities of 122 ms --
a certain first order reaction is 47 complete in 45 seconds what are the values of the rate constant and the half-life
a box of ant aunts m1 165kg and a box of ant uncles m2 330kg slide down an inclined plane while attached by a
how much energy in kilojoules is released when 225g of ethanol vapor at 970 celsius is cooled to -100 celsius ethanol
a setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal
a square loop with sides of 20 cm is falling through a magnetic field at v5 ms the magnetic field is going into the
a 263 g mass is moving in the x-direction at 488 cms while a 257 g mass is moving in the -x-direction at 628 cms they
what ions are present in a solution of hcl theoretically which of these ions will affect the equilibrium of co cl2 and
the suns rays are focused using a lens as a burning glass all the visible sunlight entering a lens of radius 297 cm is
the rate constant for the second order reaction is 80 m s at 10 degrees c starting with a concentration of 86 m
the electric field has been measured to be vertically upward everywhere on the surface of a box 20 cm long 4 cm high
what is the activation energy for a reaction if its rate is found triple when the temperature is raised from 615k to
a laser beam produces light of wavelength 6328 nm in vacuum this beam is incident at an angle of 301deg to the vertical
a 160-m uniform ladder weighing 490 n rests against a frictionless wall the ladder makes a 650deg angle with the
draw a tetra-peptide that fphd at ph 20 clearly indicate with a circle what groups would be charged if the ph was
a small sphere with a mass of 0002g and carrying a charge of 510-8c hangs froma thread near a very large charged
a compressor operates at steady state with refrigerant r134a as the working fluid the refrigerant enters at 24 bar 0oc
steam enters a nozzle operating at steady state with p 40 bar and t 400oc and a velocity of 10 ms the steam flows
a when the block just touches the spring how much gravitational potential energy has it lost give your answer as a
a nucleoside is composed of ribose that is linked to the nitrogen atom of the base which carbon on the sugar is linked
a person holds a 142-n baseball in his hand a distance of 340cm from the elbow joint as shown in the figure the biceps
a man pulls a block of mass m 23 kg up an incline at a slow constant velocity for a distance of d 55 m the incline
a bat strikes 0150 kg baseball just before impact the ball is traveling horizontally to the right at 505 ms and it