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A spherical ball of material is rotating about its center at 35 rad/s. It has a mass of 2.0 kg and a radius of 0.11 m. what will be its rate of rotation
A 6.00 kg mass is located at (2.00m, 2.00m, 2.00m) and a 5.00 kg mass is located at (-1.00m, 3.00m, -2.00 m). find the moment of inertia of this system
what is the final temperature once thermal equilibrium is reached. c) how much ice remains once thermal equilibrium is reached.
a 900.0 N hiker stops 1/3 of the way across a 3600.0 N bridge. Find the normal force acting on concrete supports at each end of the brige
A 1.50 g sample of solid NH4NO3 was added to 35.0 mL of water in a styrofoam cup (insulated from the environment) and stirred until it dissolved. The temperature of the solution dropped form 22.7 C
A disk of inertia .10 kgxm2 is rotating with an angular speed of 1.0 rad/s. A non-roatating ring of mass .5 kg, What is the new angular speed of this combination
A bicycle wheel is spinning with an angular velocity of 20 rad/s. How long does it take the wheel to come to rest
When a piece of metal is irradiated with UV radiation (wavelength = 162 nm), electrons are ejected with a kinetic energy of 5.96*10^-19 J. What is the work function of the metal? (in joules)
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 87.0 mL of 0.0601 M NaOH and 71.0 mL of 0.0138 M Ba(OH)2
A 5.0-kg mass attached to a spring is displaced 8.0 cm from equilibrium position. What is the frequency of the oscillation
Calculate the energy in joules required to ionize a hydrogen atom when its electron is initially in the n = 4 energy level.
How the scanned record will be managed and the standards or legislation that are required to be followed.
Elemental phosphorus reacts with chlorine gas according to the equation: P4 (s)+ 6Cl2 (g) --> 4PCl3 (l) A reaction mixture initially contains 45.11 g P4 and 132.0g Cl2. Once the reaction has occu
A 1200 kg car coasts in neutral down a 2.0° hill. The car attains a terminal speed of 23.0 m/s. How much power must the engine deliver to drive the car on a level road at 23.0 m/s
A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma
A car goes 13 miles east, then due North ending up 25 deg North of East from its initial position. How far due North did it travel
What is the subshell corresponding to the following sets of quantum numbers. An example of a subshell is 2s. A) n=3,l=2 b) n=3, l=1
Draw the correct molecular geometries of the following covalent compounds. Use the electronegativity differences between the atoms in each bond pair to determine the presence and direction of indivi
A 1 530-kg automobile has a wheel base (the distance between the axles) of 2.70 m. Find the force exerted by the ground on each wheel
What is the pH at 25 deg celcius of the solution obtained by dissolving a 5.00 grain tablet of aspirin in 0.500L of water? The tablet contains 5.00 grains or 0.325g of acetylsalicylic acid HC9H7O4.
A meter stick is supported on a fulcrum at the 21 cm mark. A 0.80 kg object is hung from the zero end of the meter stick, What is the mass of the meter stick
Which reaction mechanism, SN1 or SN2, is favored when NaI in acetone is used as the reagent for substitution reactions. Explain in some detail-consider solvent, nucleophile, and substrate structure.
What mass of silver bromide will form when 25.00 mL of a 0.0675 M MgBr2 solution is combined with 30.00 mL of 0.100M AgNO3
what happens to Fe+SCN=FeSCN when water is added. which way is the equilibrium shift and why. why does the color intensity increase
Use the Solubility Rules to write the dissociation equation when the ionic compounds are placed in water. If substances do not dissolve, state "no reaction" 1) magnesium chlorate