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Using a ball that has unknown mass m. You plot your data in the form of f2 versus M/L, with f in rev/s,M in kg, and L in m. calculate the mass m of the ball
Two capacitors are connected parallel to each other. Let C1= 3.50?F ,C2 = 5.50?F be their capacitances, Calculate the potential difference across each capacitor
If an electron travels 0.250 m from an electron gun to a TV screen in 32.0 ns, what voltage was used to accelerate it
You travel from "point" Columbia to St. Louis in a car moving at a constant speed of 60 km/h. What is your average speed for the entire trip
What voltage must be applied to the 5.00 µF capacitor of a heart defibrillator to store 550 J in it? Find the amount of stored charge
A 27.00 kg block is pushed up a frictionless inclined plane that makes an angle of ? = 23 o with the horizontal direction. What force is needed to move the block
A soccer player kicks a ball from ground level with an initial velocity of 25 m/s at an angle of 30° above the horizontal. What angle does the velocity vector make with the horizontal
A heart defibrillator delivering 400 J of energy by discharging a capacitor initially at 10,000 V has a capacitance of 8.00 µF, What is the voltage of the second defibrillator
To push a 56.0-kg crate up a frictionless incline angled at 34.0° to the horizontal, a worker exerts a force of 484 N parallel to the incline. What work is done on the crate by the worker
Find the capacitance of a parallel plate capacitor having plates of area 1.00 m2 that are separated by 0.400 mm of Teflon
A 1.49 kg ball is connected by means of two ideal strings to a vertical, rotating rod. The strings are tied to the rod and are taut. What is the tension in the lower string
Two equally charged particles each have a mass of 0.015kg. They are suspended by a light string with a 60 degree angle between them. find the magnitude of the repulsive electric force
Can anyone explain the intermediate compound formation theory in detail
A cylindrical capacitor has an inner conductor with a radius of 1.1mm and an outer conductor with a radius of 3.5mm. What is the capacitance per unit length
Calculate the pH during the titration of 20.00 mL of 0.1000 M C6H5COOH(aq) with 0.1000 M NaOH(aq) after 19.54 mL of the base have been added. Ka of benzoic acid = 6.5 x 10-5.
Without referring to a periodic table, write the electron configuration of the elements with the following atomic numbers Z=9, Z=20, Z=26,Z=33
Calculate the pH during the titration of 20.00 mL of 0.1000 M ammonia NH3(aq), with 0.1000 M HCl after 20.30 mL of the acid have been added. Kb of ammonia = 1.8 x 10-5.
EDTA is utilized to slow microbial degradation of mayonnaise by preventing bacterial uptake of iron. Assuming that mayonnaise has a pH of 3.9 and a total iron content of 10-6 mole/liter, how much ED
Calculate the number of moles of B at each time in the table. 0 s mol 40 s mol 80 s mol 120 s mol 160 s mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of m
An air stream's humidity is increased by combining it with a stream of water as shown below (hr stands for relative humidity). The water evaporates and increases the moisture content of the air stre
A buffer that contains 0.347 M of a base, B and 0.483 M of its conjugate acid BH+, has a pH of 8.08. What is the pH after 0.00713 mol of HCl are added to 0.442 L of the solution
Determine the molar absorptivity of the acidic form of bromocresol green at 445 nm and at 615 nm. Given: Stock soln of bromoscresol green= 80.0 mg/L Molar Mass= 698.0 g/mol ?(445nm)=A445/[BG]
Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX2 from the information given below. IE1+ IE2 (M) = 1,487 kJ/mol M(s)
Calculate the pH of a solution that results from mixing 32.8 mL of 0.157 M dimethylamine ((CH3)2NH) with 44.0 mL of 0.144 M (CH3)2NH2Cl. The Kb value for (CH3)2NH is 5.4 x 10-4