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the specific heat of iron metal is 0450 jg-k how many j of heat are necessary to raise the temperature of a 105-kg
kevin has a mass of 812-kg and is skating with in-line skates he sees his 154-kg younger brother up ahead standing on
a person pushes on a stationary 125 n box with 64 n at 30 deg below the horizontal as shown in the figure the
two stunt drivers drive directly toward each other at time t0 the two cars are a distance d apart car 1 is at rest and
the problem is about a solution in second order that the original ao 0100m 20 of the reaction is completed in 40
when an ionic solid dissolves in water water molecules attract the ions causing them to dissociate of come apart the
a sled starts from rest at the top of a hill and slides down with a constant acceleration at some later time it is 144
a bowling ball which can be treated as a solid sphere with a diameter of 216 cm and a weight of 33 kg rolls down a
calculate the minimum ph needed to precipitate mnoh2 so completely that the concentration of mn is less than 1
2816 g sample of khp required 2968 ml of sodium hydroxide to reach the phenolphthalein point calculate the molarity of
calculate the ph if 2 mol hcl is added to5 l of a butter solution that is 28 m nh3 and 22 m nh4cl for nh3 the
you have been called to testify as an expert witness in a trial involving an automobile accident the speed limit on the
how many grams of methane ch4g must be combusted to heat 100 kg of water from 25 degrees celsius to 88 degrees celsius
a satellite moves in a circular orbit around earth at a speed of 4251 msa determine the satellites altitude above the
a 750 n box moves at a constant velocity on a floor with a coefficient of static friction 0800 and coefficient of
a box that weighs 300 n is pulled across a level surface with a constant velocity the rope makes an angle of 300
a sled weighs 100 kg it is held in place on a frictionless 200-degree slope by a rope attached to a stake at the top of
a gas is confined to a cylinder under constant atmospheric pressure when 419 j of heat is added to the gas it expands
five children are pushing on a snowball each is pushing with a force of 100 n each is pushing at an angle of 45deg
a catcher catches a 145 g baseball traveling horizontally at 380 msa how large an impulse does the ball give to the
combust 22 g of propane c3h8 in the presence of 96 g of oxygen in a strong sealed 100 liter ridgid container what is
a bat strikes a 0145 kg baseball just before impact the ball is traveling horizontally to the right at 500 ms and it
on an air track a 400g glider moving to the right at200 ms collides elastically with a 500g glider moving in