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A capacitor has parallel plates that have an area of 1.03 cm2 and are 1.04mm apart. There is a vacuum between the plates, and the electric field magnitude is 1.06E6 N/C. Find the potential across the
The acceleration of gravity is 9.81 m/s2 . Find the magnitude of the acceleration of the block-wedge system.
An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement from equilibrium is A and the total mechanical energy of the system is E
A 5 m plank of mass 100 kilograms rests on top of a building with 2 meters of plank extended over the edge of the building. How far can a 50 kg person venture past edge of building on plank before t
Three identical resistors are connected in parallel. The equivalent resistance increases by 670 when one resistor is removed and connected in series with the remaining two, which are still in parall
The potential difference between the wire and the cylinder is 1.00 kV. (a) What is the direction of the electric field inside the tube?
A computer monitor accelerates electrons and directs them to the screen in order to create an image. If the accelerating plates are 1.30 apart, and have a potential difference of 2.15×10^4 V,
A small sphere that carries a charge q is whirled in a circle at the end of an insulating string. The angular frequency of rotation is ω. What average current does this rotating charge represe
One of the most powerful cranes in the world operates in Switzerland. It can slowly raise a load of M = 6900 tonnes to a height of h = 12.0 m (1 tonne = 1000 kg). (a) How much work is done by the cr
If he started at an angle of 20 degrees what is maximum velocity of his motion and where does it occur?
L-Alanine has an enthalpy of formation of 560 +/- 1.7 kJ/mol. Write a balanced equation for the aerobic metabolism of alanine to urea, carbon dioxide, and water.
Unfortunately, the solid floats when placed in water, therefore traditional water displacement cannot be used. How can the displacement method used today be altered to determine the volume of the so
You are traveling in a convertible with the top down. The car is moving at a constant velocity 25.5 m/s, due east along flat ground. You throw a tomato straight upward at a speed of 13.6 m/s. How fa
Canadian 10¢ and 25¢ coins are made of pure nickel which has a density of 8.902 g/cm3. Suppose each dime weighs 2.08 g and each quarter weighs 5.20 g.
A sample of chloroform is found to contain 11.3 g of carbon, 100.2 g of chlorine, and 0.95 g of hydrogen. If a second sample of chloroform is found to contain 23.2 g of carbon, what is the total ma
Butane's (C4H10) molar enthalpy of vaporization is 22.44 kJ/mol and its normal boiling point is -0.4 degrees C. A 250-mL sealed Erlenymeyer flask contains 0.55g of butane at -22 degrees C.
Relative to the ground determine the angle of the velocity vector of the package just before impact.
What is the age of a bone fragment from an archaeological dig if the bone shows an average of 2.5 radioactive events per minute per gram of carbon? Radioactive decay is kinetically a first-order pr
At what vertical distance below the edge does the velocity vector of the water point downward at a 71° angle below the horizontal?
The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K by the empirical expression Cp,m/(J K^-1 mol^-1)= 14.73 + 0.1272 (T/K).
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m Prior to release the spring was compressed by 10.7 cm. When dart is 2 m above the gun its upward speed is 7 m
You carry 7.0 kg bag of groceries 1.2m above ground at constant velocity across a 2.3 m room. How much work do you do on bag in process?
A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.180 g of this subunit was dissolved in enough water to produce 2.00 \rm mL of solution.
A river of width 31 m flows in a straight line (the x direction) with a speed of 0.21 m/s. A boat is rowed such that it travels directly across the river (along y). If the boat takes exactly 3.0 min
A mixture of CH4 (methane) and C2H6 (ethane) weighs 68.00 grams and it is burned in with oxygen fuel. The products formed in this reaction are H2O and CO2 and these products weigh 13.00 grams. Find