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when 1g of natural gas is burned in a stove about 56kj ofheat is produced how much mass is lost in the process can this
original problem a person walks at constant speedv1 along a straight line from a to b and then back alongthe line from
a student makes a short electromagnet by winding 160 turns of wire around a wooden cylinder ofdiameter d 40 cm the
emilie wishes to fly to phun city a place where physics geeksrule the land loacted 800 km n of her present postion her
a cart of a mass 300 kg is pushed up a track at an angle of44 degrees from the bottom to a position that is 30m higher
a 30 kg girl whos running at 3 ms jumps on a stationary 10 kg sled on a frozen lake how fast does the sledwith the girl
a 54 kg ice skater is moving at 39 ms when she grabs theloose end of a rope the opposite end of which is tied to apole
an archer shoots an arrow toward a 300g target that is sliding in her direction at a speed of 250 ms on a smooth
a fighter pilot dives his plane toward the ground at400 ms he pulls out of the dive on a vertical circle what is the
a certain molecule is made up of four atoms three of themhave mass m and are located at the vertices of an
a certain laser outputs pure blue light photon energy 31 ev with power 400 milliwatts 04watts how many photons per
a bead of mass m acted upon by a uniform graviational forcecan slide freely on a frictionless circular hoop of radius r
a 4 kg box is raised from rest adistance of 6 m by a vertical force of110 na find the work done by the forceb find the
the following pairs of soluble solutions can be mixed in some cases this leads to the formation of an insoluble
sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown
if the acceleration of a 75 kg skydiver is 4ms2a what is the net force on theskydiverb what is the weight of the
chlorine dioxide has been used as a disinfectant in ac systems it reacts with water according to the equation 6clo23h2o
four objects are situated along the y axis as followsa 201 kg object is at 298 m a290 kg object is at 245 m a253 kg
write a balanced chemical equation for thermal decomposition of niso47h2o based on observation that compound remained a
write a chemical equation for thermal decomposition of crcl36h2o based on observation that blue litmus paper moistened
the head of a strike anywhere match contains tetraphosphorous trisulfide p4 s3 in an expriment a student burned this
a 205 cm tall object is placed 300 cm to the left of aconverging lens with a focal length f1 189 cm a diverging lens
calculate the ph of a solution containing 15 m acetic acid and 25 m sodium acetate for acetic acid ka 18 x10-5 either
at certain temperature kc for the reaction pcl5-gtlt- pcl3 cl2 is equal to 333 after 20 mole of pcl5 and 10 mole of
draw 2r3r-2-bromo-3-phenylpentane in the conformation from which it is most likely to undergo e2 elimination to give