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a ring is fitted loosely with no friction around a long smooth rod of length l 051 m the rod is fixed at one end and
how much energy is required to vaporize 487 g of dichloromethane ch2cl2 at its boiling point if its hvap is 316
the collar a slides on the vertical bar at the instant shown its coordinates are x09 m y06m and its velocity and
a sample of a particular isotope registers 160 counts per minute eight hours later the detector registers a rate of 10
which color light is the result of greater energy transition red or blue when an electron makes a transition from its
while a roofer is working on a roof that slants at 430 degrees above the horizontal he accidentally nudges his 950 n
a mixture containing 33 moles of no and 85 mole of co2 was allowed to react in a flask at a certain temperature
a car is traveling along a straight road at a velocity of 273 ms when its engine cuts out for the next 257 seconds the
the position of an alien spacecraft is given by r o78t3i - 17t2j 039k m the mass of the spacecraft is 245 x 106 kg
a 16000 kg f-18 lands at 52 ms on an aircraft carrier its tail hook snags the cable to slow it down the cable is
what is the ph of the buffer after the addition of 100 ml of 010 m hcl to 675 ml of the
communication satellites are geosynchronous meaning that they have a rotational period equal to one day this keeps them
at the same temperature rank the following substances in the order of increasing average kinetic energy co2 he h2
nuclear transmutation causing atoms of one element to become a different element is possible using currently-available
a car is traveling at a constant speed of 20 ms about 44 mih that is initially traveling due northwest rounds a corner
when cars are equipped with flexible bumpers they will bounce off each other during low-speed collisions thus causing
a solar cell generates a potential difference of 01452 v when a 500 resistor is connected across it and a potential
describe the interactions that must be overcome to melt or boil the following substances lithium bromide carbon dioxide
a charge 500 is placed at the origin of an xy-coordinate system and a charge -450 is placed on the positive axis at
a calculate the magnitude of the repulsive electric force between two protons packed together in an atomic nucleus
the figures show a hypothetical planetary system at two different times the spatial coordinates x y of the bodies are
if the magnetic field of the wire is 20times104 and the electron moves at 10times107 what is the magnitude of the
as long as you dont stretch it too much the force exerted by the spring obeys hookes law the further you stretch the
list all of the intermolecular forces in each of the following substances ch3nh2 co2 so2
a uniform cylinder of mass m826 kg and radius r0147 m is released from rest on an inclined plane theta424 deg and rolls