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Assume depreciation is exponential. Determine the formula for value of car at time t. Assume instead that depreciation is linear. Determine the formula for value of car at time t.
A) A nurse exerts a force of 4.33 N to the piston of a syringe. The piston consists of an area of 5.79 x 10-5 m2. Determine the pressure raise in the fluid in the syringe?
Calculate the theoretical yield of acetanilide in moles and grams, if 10 grams of aniline are allowed to react with excess acetic.
What mass of calcium nitride forms, when 31.7 g nitrogen and 57.0 g calcium gas undergo a reaction that has a 95.0% yield.
Suppose that a 10-ml graduated cylinder (in which the volumes can be read to the nearest 0.1 ml) and a 100-ml graduated cylinder are available then how will you prepare the following solutions from
An equilibrium mixture which is having N2O4, (P=0.26 atm) and NO2 (P=1.2atm) at 350 K. At the constant temperature the volume of the container is doubled.
How many millions hectares of natural forests were lost during 1990's? How many millions hectares of natural forests existed in year 2000?
Determine the numbers of grams of CuSO4*H2O are required to prepare the stock solution? A stock solution of approximately .09 M [Cu(NH)4]2+is prepared by dissolving a small quantity of CuSO4*5H2O in a
A student is ice fishing in Colorado on the frozen lake over spring break. He cuts a circular hole in the ice which consists of a diameter of 0.50m. The ice on the lake is 0.50m thick. Determine the
Suppose a spacecraft which can travel with a speed of 5 * 10^4 km/hr (a typical speed of a present day spacecraft), determine how long would it take to reach that latest planetary system?
Calculate the maximum mass of K2O(s)that could be prepared from 8.04 g of K(s) and 2.28 g ofO2(g) if Potassium reacts with oxygen to make potassium oxide, K2O.
Determine the numbers of grams of Pb(NO3)2 would you need to add to 75 mL of a 2.5 M NaCl solution to precipitate out all of the Cl-?
A fisherman in 9.4 s winds 2.3 m of fishing line onto a reel whose radius is 3.0 cm (supposed to be constant as an approximation). The line is being reeled in at a constant speed. Find out the angul
At room temperature (25 C) a 200 ml bottle of water is placed inside a refrigerator maintained at 2 C and allowed to come to equilibrium.
Make a table of relative and absolute pressures for depths of 10.0m, 20.0m, 30.0m, 40.0m and 50.0m in the sea water. Provide pressures first in Pa and then transform into atm.
The circular loop of wire rotates about the diameter in the magnetic field which is perpendicular to the axis of rotation. Looking in the direction of the field at the loop the induced current is:
Calculate the theoretical yield (g) of CaO(s) that could be prepared from 8.13 g of Ca(s) and 2.05 g of O2(g)? Calcium reacts with oxygen to make calcium oxide, CaO.
\(2cos^{2}x+5cosx+2=0\) Find out solution set of every equation in radians (for x) to four decimal places or degrees (for ) to nearest tenth as suitable.
The star Gliese 581 is positioned 20.3 light-years from the Earth, and is thought to have at least one planet in the habitable zone. A manned space-ship travels from Earth to Gleise 581 and back at
An object of 0.663kg suspends vertically from the 6.2 cm mark. A second mass is joined at the other mark to keep it horizontal and in rotational and translational equilibrium.
Determine the numbers of moles of NaOH can be formed from 5.22*10-2mol of sodium metal and excess water in the reaction below
A ball of mass of 0.100 kg is dropped from rest from a height of 1.25 m. This rebounds from the floor to reach a height of 0.800 m. Determine what impulse was given to the ball through the floor?
In a cyclotron (one kind of particle accelerator), a deuteron (of atomic mass of 2.00 u) reaches a final speed of 8.00% of the speed of light while moving in the circular path of radius 0.565 m. The
Determine the molar mass of the unknown gas in grams. An effusion container is filled with the 8 L of an unknown gas, and it takes 136 s for the gas to effuse into a vacuum.
The DC motor of internal resistance 6.0 Ohms is joined to a 24 V power supply. The operating current is around 1.0 A at full speed. Determine the back emf if the motor is running at full speed?