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a 100v dc battery, a resistor and a capacitor are connected in series. The capacitor is initially uncharged. estimate the capacitance of the capacitor
31.3 million excess electrons are inside a closed surface. what is the net electric flux through the surface
On an essentially frictionless horizontal ice-skating rink, a skater moving at 3.1m/s encounters a rough patch that reduces her speed by 42% to a friction force that is 24% of her weight
A device uses a Stirling cycle on 391 moles of a monatomic ideal gas between two reservoirs with temperatures of 395 K, How much energy does this device remove from the cold reservoir
baking soda (NaHCO3) can be made in large quantities by the following reaction: NaCl + NH3 + CO2 + H2O ---> NaHCO3 + NH4Cl If 9.41g of NaCl reacts with excesses of the other reactants and 3.81g o
From the top of a 70m building, you throw a ball straight up at 6m/s. The ball misses the building on the way down. what is the maximum height of the ball
Initially a container contains 0.75 M HBr and no product. What is the equilibrium concentration of HBr if the equilibrium concentration of H2 is 0.14 M
You need to design a photodetector that can respond to the entire range of visible light. find the maximum possible work function of the cathode
2HI(g) ? H2(g) + I2(g) Keq = 0.016. Initially a container contains 0.46 M HI and no product. What is the equilibrium concentration of H2
Identify how the carbon sequestration strategy seeks to fix, or at a minimum, define what is meant by the term carbon sequestration
A first order decomposition reaction has a half-life of 60yr. What percentage of the original amount is left after 164years. (give answer to 3 sig figs using E notation)
A lunar lander is making its descent to Moon Base I. The lander descends slowly under the retro-thrust of its descent engine. What is the speed of the lander
Determine how many cows you want, determine how much land is necessary and where you want the cows to graze. Draw the dimensions on the grid.
A certain projectile is launched with an initial speed v0. At its highest point its speed is v0 / 4. What was the launch angle
a reaction vessel contains 13.9g of CO and 13.9g of O2. How many grams of CO2 could be produced according to the following reaction? 2CO + O2 ---> 2CO2
A photoelectric-effect experiment finds a stopping potential of 1.93 V when light of 200 nm is used to illuminate the cathode, From what metal is the cathode made
In a friendly game of handball, you hit the ball essentially at ground level, How high is the ball when it hits the wall
At a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xb
Electrons in a photoelectric-effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10 eV
Calculate the mass of nitrogen dissolved at room temperature in an 76.0L home aquarium. Assume a total pressure of 1.0atm and a mole fraction for nitrogen of 0.78.
Write the ground-state electron configurations for the following elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.)
A swimmer runs horizontally off a diving board with a speed of 3.44m/s and hits the water a horizontal distance of 1.74m from the end of the board. How high above the water was the diving board
A lawn mower is pushed at constant speed by a horizontl force of 10.0 lbs. determine the work done by the person
Determine the maximum number of electrons that can be found in each of the following subshells.
a photon has a wavelength of 741nm calculate the energy of the photon in joules