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two horizontal forces 241 n and181 n are exerted on a canoe if thethese forces are applied in the same directions find
butryic acid is responsible for the odor in rancid butter a solution of 25m butryic acid has a ph of 271 what is the ka
an aluminum wire has the same resistanceas a copper wire of the same length find the ratio of the aluminumwires
it takes a force of 850 n to compressthe spring of a toy popgun 0203 m toload a 0153 kg ball with what speed will the
formic acid hcooh is secreted by ants what is the ph of a 100l solution that contains 025 mole of hcooh and 025 mole of
consider the earth and a cloud layer 800m above the planet to bethe platesof a parallel-plate capacitoraif the cloud
high-intensity desk lamps are rated at 30 w but require only 13 v they contain a transformer that converts 125 v
an electric power station is producing 1 x 103 w of power that is to be sent to a small town located 11 km away eachof
a solution is made by mixing 690 l of 0027 m sncl4 and 291 l of 00043 m nacl solution what is the concentration of cl-
an ac generator has 70 rectangular loops on its armature each loopis 15 cm long and 8 cm wide the armature rotates at
an arrow with a mass of 80 g is fired at an angle of 30 degree tothe horizontal it strikes a target located 5 m above
when 955 g sample of solid sodium hydroxide dissolves in 1000 g of water in a coffee-cup calorimeter the temperature
a motor has an armature resistance of 25 ohms if it draws 10 a when running at full speed and connected to a 100 v line
a 250 g piece of lead is heated to 300 celsius and placed into a beaker containing 500 ml of water how much heat energy
the drawing shows four point charges the valueof q is 30 muc and thedistance d is 063 m find the total potentialat the
a mass connected to a horizontal spring sits on a frictionlesstable the mass is moved to compress the spring and the
a styrofoam slab has thickness h and densityrhos when a swimmer of mass m isresting on it the slab floats in fresh
normal atmospheric pressure is 1013 multiplied by 105 pathe approach of a storm causes the height of a mercury
consider rutherfordrsquosexperiment would the estimated size of the nucleus be greater smaller or the same if he has
there are two stable isotopesof the element lithium one of them has three neutrons and the other has four all other
two parallel circularrings of radius r1 m have their centers on the x-axis separated bya distance of 2 m planes of the
a box with a mass of 10 kg is moving to the right its initialspeed is 2 ms after traveling 3 m its speed is 4 ms
a cat spots a flowerpot that sails first up and then down past an open window the pot is in view for 050 seconds and
can you split up a solid when it is a reactant when finding the net ionic equation so in this case mgco3
what energy is released in mev during a reaction in which 167 x10-25 kg of material is converted to energya 50 x 10-14