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a heat engine does 50223 j of work per cycle while exhausting 9469 j of waste heat what is the engines thermal
a cannon fires a cannon ball at 61037 ms in a straight line that passes directly over an observers head if the observer
an iron bar of mass 057 kg slides down a frictionless incline 067 m high at the bottom of the incline it collides and
the springs of a 1200 kg car compress 50 mm when its 68 kg driver gets into the drivers seat if the car goes over a
which is most acidic butanoic acid marvin structure bromobutanoic acid marvin structure hydroxybutanoic acid marvin
a 60 cm long rod has a 400 kg mass on one end and a 600 kg mass on the other end how far from the center of the rod is
1 the sides of a rectangular block of solid copper metal are measured to be 826 cm 2984 cm and 092 cm length width and
on average each person in the industrialized world is responsible for the emission of 10 000 kg of carbon dioxide co2
a crate of mass 102 kg is pulled up a rough incline with an initial speed of 152 ms the pulling force is 106 n parallel
a water slide launches a child horizontally above a swimming pool the distance from the top of the slide to the launch
a 1500 kg truck cruising at 200 ms approaches a 0450 km long hill inclined at 574 to get to the top the driver puts the
how much dry solute would you take to prepare the following solution from the dry solute and the solvent 129g of 0120m
a blackbody emits light with a frequency of 154 x 1014 s-1 the total energy emitted per second at this frequency is 102
at 250 c a solution has a concentration of 3179m and a density of 1260 gml the density of the solution at 500 c is 1249
a positively charged particle of mass 660 10-8 kg is traveling due east with a speed of 35 ms and enters a 039 t
an archeologist has discovered an old artifact its carbon-14 content is found to be 417 of that in a fresh sample of
silver chloride often used in silver plating contains 7527 what is the mass of silver chloride required to plate 285
carbon-14 dating can be used to estimate the age of formerly living materials because the uptake of carbon-14 from
during the the a compact disc cd accelerates from rest to a constant rotational speed of 900 revmin it rotates through
fecl3 reacts with only one of the two compounds aspirin and salicylic acid with which part of a molecule does fecl3
two cars of equal mass collide on a horizontal frictionless surface before the collision car a is at rest while car b
a box of 300n weight is at rest at the bottom of the plank that is 500m long and rises 30 degrees above ground then the
a heat pump has a coefficient of performance of 375 and operates with a power consumption of 693 103 wa how much energy
george is making spaghetti for dinner he places 401 kg of water in a pan and brings it to a boil before adding the
a shell is fired with a horizontal velocity in the positive x direction from the top of an 80 m high cliff the shell