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Two parallel metal plates have area A = 255cm2 and are sepearated by l= 0.50 cm. They have a potential difference of 0.25V. Find the numerical value of the electric field. What are the charge densi
Determine the amount of money to nearest dollar, you must invest at 6% a year, compound annually, so that you will be a millionaire in 33 years?
What is the final temperature of the water? Assume that no heat is lost to or gainedfrom the surroundings. Specific heat capacity of nickel 0.444J/(g.K).
A 28 kg block slides with an initial speed of 13 m/s up a ramp inclined at an angle of 20 degrees with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.6. Use
A culture of bacteria doubles after 4 hours. What proportion of the original number of bacteria Q0 will be present after 8 hours?
A system initially has an internal energy U of 38 J. It undergoes a process during which it absorbs 27 J of energy andhas 99 J of work done on it by its surroundings. What is the final energy of the
Determine when the function has a horizontal tangent(s) and state the equation in the interval 0(less than or equal to)x(less than or equal to)2pi for y=((-sqrt(3))/2)x-sin(x)
In a series R-L-C circuit, the phase angle is 40.0, with the source voltage leading the current. The reactance of the capacitor is 400 and the resistance of the resistor is 200 . The average power
Consider a peice of wire that is bent into the following pac man shape the radius is 3.0 cm and the angle is 96 degree. How long is the wire? What is the area inside the shape?
What are the steps and mechanisms for cationic polymerization involving AlBr3 as initiator and C(CH3)3Br as co-initiator?
A wind speed of 60 km/h is directed towards the se. A plane flying due north has an air speed of 280 m/s. What is the speed in compass notation, the plane is atually travelling seen by air traffic
A metal airplane with a wingspan of 29 flies horizontally along a north-south route in the northern hemisphere at a constant speed of 330 in a region where the vertical component of the Earth's mag
The decomposition of dinitrogen pentaoxide has an activation energy of 102 kJ/mol and delta H rxn = +55 kJ/mol. What is the activation energy for the reverse reaction?
What must the potential difference between the plates be to hold the droplet in equilibrium?
7.51 kilojoules of heat is added to a 22.8 g piece of copper, intially at 51 degrees celsius. What will be the final temperature of the copper (in degrees celsius)? (specific heat of copper = 0.385
Two forces , each 2200 N , act on an automobile as follows: t2 is directed 40 degres above the road. What is the the total force ( magnitude and direction ) acting on an automobile.
The magnetic flux through one loop of wire is reduced from 0.39 to 0.19 in 0.30 . The average induced current in the coil is 13 . Can you determine the area of the loop from the data given?
What is the major aldol product from the reaction of excess 2,2-dimethylpropanal with etanal? What are the possible aldol product(s) from the reaction of ethanal and methanal?
Four point charges have the same magnitude of 1.9 x 10-12 C and are fixed to the corners of a square that is 6.4 cm on a side. Three of the charges are positive and one is negative. Determine the m
A diffferential equation in the form of M(x,y) dx + N(x,y) dy = 0 is called exact if dM/dy = dN/dx. Determine if the differential equation (2x(y^3) +2) dx + (3x^2 y^2 + e^y) dy = 0 is exact.
Fats and oils are also converted commercially into long-chain alcohols. What is the best and most direct reaction by which to accomplish this?
A function f(x,y) is harmonic if fxx + fyy = 0. Determine if the function g(x,y) = e^(-x) cos(y) + e^(y) cos(x) is harmonic.
In a semiclassical model of the hydrogen atom, the electron orbits the proton at a distance of 0.053 nm. a. What is the electric potential of the proton at the position of the electron? b. What is the
The heat of vaporization of water is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 12.00 g of liquid water at 100°C into 12.00 g of steam at 100°C?
Give the distance of the spot to the positive charge in meters (m). (Hint: The spot does not necessarily lie between the two charges.) (b) What would be the force on a charge of +14 C placed at this