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A charged sphere of radius 10 cm has a total charge of 5 C. Calculate the potential at the surface of the sphere
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.54 hours. What is density of the planet
For the reaction: PbCl2(s) ? Pb2+(aq)+2Cl1-(aq), what is Q* when 3.9 mL of 0.080 M lead nitrate is added to 13 mL of 0.020 M sodium chloride? Ksp of lead chloride is 1.6 x 10-5 M3.
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.80 m, Determine the current in the rods
To find the value of the equilibrium constant at each temperature you must first find the value of G0 at each temperature by using the equation G0 = H0 - TS0 For this reaction the values are H0 = +8
An astronomical telescope uses an objective power of +1.280 D. If the length of the telescope is 80.000 cm, what are power of the eyepiece
The pulmonary artery, which connects the heart to the lungs, has an inner radius of 2.9 mm and is 8.6 cm long. find the average speed of blood in the pulmonary artery
A 64.0-kg survivor of a cruise line disaster rests atop a block of Styrofoam insulation, using it as a raft. What total mass of survivors can the raft support
What will be your total profit and how many items will be accepted as good products - How many items will be refurbished products?
A 71.0kg football player is gliding across very smooth ice at 2.00m/s, What is the player's speed afterward if the ball is thrown at 18.0m/s relative to the ground
An object is placed 24.5 cm to the left of a thin converging lens that has focal length +12.1 cm. What is the distance between the object and the image
Starting from rest, two skaters "push off" against each other on smooth level ice, where friction is negligible. find the recoil velocity of the man relative to the ice
Given that 318 kJ of heat are released for each mole of Fe3O4 formed, what is the enthalpy change of the balanced reaction of formation of Fe3O4 from iron(ii) oxide and oxygen
The equilibrium will shift towards product and Keq will increase. B)The equilibrium will shift towards reactant and Keq will decrease.
Consider a binary separator used to separate aluminum cans from glass. A total mass of 0.8 tonne/hr enters. what is the recovery of aluminum
In the stepwise trihalogenation process of the methyl group in acetophenone the methyl group is initially deprotonated. This deprotonated species which bears a negative charge on the carbon atom is
Determine the capacity of a roll crusher. The separation is 7 mm, speed of the rollers is 50 rpm, roller diameter is 23 cm, roller length is 0.4 m
An air cyclone is used to separate solid particles having different masses. what is the centrifugal acceleration of the particles
A stone is thrown vertically downward from a cliff 186.0-m tall. During the last half second of its flight, Find the initial speed of the stone
What happens to the amount of ionisation as we increase the ionic strength of a solution? What happens to the solubility of a salt and what is meant by the various terms we use when discussing analy
Two boat landings are 1.0 km apart on the same bank of a stream that flows at 1.8 km/h. What is the speed of the boat relative to the water
A 87 gram piece of metal is heated to 98°C and placed into 200mL of water insulated at 20°C. If the equilibrium temperature is 26.64, find the heat gained by the water
This deprotonated species which bears a negative charge on the carbon atom is stabilized by resonance. -Please explain how it stabilizes, and show the other contributing resonance form and name this
The richer a reaction mixture is in product the higher its Q value is. E) As a reaction progresses forward toward equilibrium K is the highest value Q attains.
A picture hangs on the wall suspended by two strings, as shown in the figure, with theta = 68°. The tension in string 1 is 1.4 N. What is the weight of the picture