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A metal bar with a resistance of 30 ohms is rotated around its center in a magnetic field of strength 0.5 T, what is the electrical power dissipated in the resistor
Define the following terms: carbohydrate, monosaccaride, disaccharide, polysaccaride. Give an example of a simple sugar and name the functional group associated with your example.
The standard molar enthalpy of fusion of ice is 6.01 kJ/mol. The desities of ice and liquid water at 0 degree celcius are 0.9167 and 0.9998 g/cm3.
Suppose you're skiing up a 20m tall slope at the indicated angle of inclination. What minimum initial speed must you have at the bottom to just make it to the top
A permanent dipole is at rest at origin of a coordinate system with a random orientation. What is the equilibrium orientation of the dipole
Calculate the pH of a solution made from dissolving 1.00 moles of benzoic acid with 1.00 moles of sodium benzoate in enough water to make 750ml of solution.
A 3.7cm x 5.8cm rectangle lies in the xz-plane, What is the electric flux through the rectangle if E = (80i + 70j) N/C
Calculate the pH of the above solution if 1.00 moles of benzoic acid and .97 moles of Sodium Benzoate are added in enough water to make 750ml of solution
A concave mirror ( f = 51 cm) produces an image whose distance from the mirror is one-third the object distance, determine the object distance and the image distance
A gas mixture containing oxygen, nitrogen, and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of the
A 1.90-cm-high object is situated 12.8 cm in front of a concave mirror that has a radius of curvature of 10.4 cm, calculate the location and the height of the image
What is the pH of a solution to which 35.0 ml of .20 M HCl and 50.0 ml of .42M NaOH have been combined
A railroad car of mass 2.52 104 kg is moving with a speed of 4.06 m/s. It collides and couples with three other coupled railroad cars, How much mechanical energy is lost in the collision
a block of mass 2.5 kg is placed at a distance d=0.300 m from the spring. from this posistion the block is projected toward the spring with a speed v
A gas mixture containing oxygen, nitrogen and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of heliu
Define potential difference. What is the difference between electric potential and electric potential energy? What is the unit for potential difference
Using the method of successive approximations, what is [H3O+] in 0.00500 M CH2ClCOOH(aq) (Ka=1.4x10^-3) and how many iterations (n) are needed to validate that a constant value had been obtained? Ex
how many iterations (n) are needed to validate that a constant value had been obtained? Express [H3O+] using two significant figures, followed by a comma and the number iterations as an integer
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle, What is the mass of the wheel
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r, how fast is the roller coaster traveling at the bottom of the dip
In a gas mixture, the partial pressure are argon 415 mmHg, neon 75mmHg, and nitrogen 125 mmHg. What is the total pressure (atm) exerted by the gas mixture
A proton moves through a magnetic field at 25.9% of the speed of light. what is the magnitude of the magnetic force acting on the proton
In an acidic dry cell battery, the following unbalanced half reaction takes place in acidic solution: MnO2(s)>Mn2O3(s). a)balance the half reaction. b)is MnO2(s) oxidized or reduced. c) indicate
A molecule is represented by a charge -2q at the origin and charges +q at b1 and b2, where | b1 | = | b2 | = b, Find dipole moment of the molecule
A transformer has 350 primary turns and 1390 secondary turns. The input voltage is 120?V and the output current is 18.0A, find the output voltage and input current