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a horizontal spring is lying on a frictionless surface one end of the spring is attaches to a wall while the other end
62 ml of 17m solution is diluted to a volume of 208ml a 104ml portion of that solution is diluted using 141ml of water
a 1 1650 kg car traveling initially with a speed of 25000 ms in an easterly direction crashes into the back of a 9 1000
a plank 200 cm thick and 149 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the
a ground state h atom absorbs a photon of light that has a wavelength of 973 nm it then gives off a photon that has a
the only force acting on a particle is conservative force if the particle is at point a the potential energy of the
this demonstration is more complicated because it involves a vector for a rotating wheel the direction of the angular
a heavy mass in free fall does not fall faster than a light mass the extra weight is compensated for by extra
the period of a satellite at an altitude of 200 km above the surfce of the earth is 20 hours what is the period of a
how much thermal energy is required to take a 130 g block of ice at -10 degrees celsius and heat it to steam at 120
newtons second law could be stated either as or as force equals time rate of change of linear momentum for simple
a 5 gallon tank of air at 25 degrees c and 31 psi is connected to a 17 gallon tank of air at 25 degrees c and 12 psi
close a door by pushing on the doorknob close the door again using approximately the same force but applying it 5
a rope under a tension of 90n and fixed at both ends oscillates in a second-harmonic standing wave pattern the
boyless law focuses on external pressure what might be the case if it focuses on the internal pressure how would this
a hydrogen atom in an excited state emits a photon of frequency 2924 x 1015 s-1 if the electron returns to the ground
a spring is hung from the ceiling a 0531 -kg block is then attached to the free end of the spring when released from
a 150m long ramp is inclined at 20 degree to the horizontal a solid ball is released from rest at the top of the
a heavy-duty stapling gun uses a 0131-kg metal rod that rams against the staple to eject it the rod is pushed by a
the bolts on the cylinder head of an engine require tightening to a torque of 92 mmiddotn if a wrench is l 30 cm long
a 610 m length of insulated copper wire is wound to form a solenoid of radius 22 cm the copper wire has a radius of 047
a 66 trampoline artist jumps vertcally upward from the top of a platform with a speed of 54 a what is his speed as he
a express the van der waals parameters a 0751 atm dm6 mol-2 and b 00226 dm3 mol-1 in si base unitsb express the van
a thin film of oil n 126 is located on smooth wet pavement when viewed from a direction perpendicular to the pavement
using the reaction below determine the limiting reagent theoretical and yield 750ml of 1 pentene was allowed to react