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4L of N2 is saturated with water vapor at 22Celsius degree and then compressed to half of its volume What is the partial pressure of H2O in the compressed gasmixture?
A 80 kg student consumes 2500 cal each day and stays the same weight. One day, he eats 3500 cal and, wanting to keep from gaining weight, decides to "work off" the excess by jumping up and down. Wi
Two previously undeformed cylindrical specimens of brass are to be strain hardened by reducing their cross-sectional areas (while maintaining their circular cross sections). For one specimen, the i
A Ferris Wheel has a radius of 11.0 m and rotates once every 11.0 s. What is the force of the chair seat on you at each of the three positions, top, side, and bottom? Answer as a multiple of your we
For a locus with two alleles (A and a) in a population at risk from an infectious neurode generative disease, 16 people had the genotype AA, 92 had genotype Aa, and 12 had the genotype aa.
In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.0 times 105 N/C during the first 5.0 cm of the tube's length; then they move at essentiall
How far does she need to extend the "tuning joint" of her flute to be in tune with the tuning fork?
Calculate the molar concentration of H3O+ in a.3 M HNO2 (aq) solution. HNO2 reacts with NaOH(aq) in a neutralization reaction.
Find the direction of force on an electron at x=-1,y=0.[Answer should be in degrees. (counterclockwise from plus x axis) ].
A 1 kg sample of nitroglyceride C3H5N3O9 explodes and releasesgases with the temperature of 1985 celcius at 1 atm. What is the volume of gas produced?
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the o
What wavelength is required to get 5 standing wave segments on a doubly fixed string of length 0.75m? If the velocity v is 50m/s, what will be the frequency of this wave?
Calculate the mass of sodium acetate that must be added to 500.0 mLof .2 M acetic acid to form a pH = 5.00 buffer solution.
A marble spins in a vertical plane around the inside of a smooth, 20-cm-diameter horizontal pipe. The marble's speed at the bottom of the circle is 3.0 m/s. A) What is the marble's speed at the top?
A steady horizontal force F of magnitude 21 N is applied at the axle of a solid disk as shown. The disk has mass 2.0 kg and diameter 0.10 m. What is the linear speed of the center of the disk after
Point A is located 0.75 m away from a charge of -3.90 x 10-9 C. Point B is located 0.35 m away from the charge. What is the electric potential difference VB - VA between these two points?
Calculate the buoyant force due to the surrounding air on a man weighing 800N . Assume his average density is the same as that of water, and surrounding air temperature is 0 degrees Celsius.
A hole of radius 1 mm is at the bottom of a large water storage tank that is 15 m high. What is the volume flow rate (Av) of the water out of the whole?
Assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used.
A constant electric current deposits 0.365 g of silver metal in12960 seconds from a solution of silver nitrate. What is thecurrent? What is the half reaction for the deposition of silver.The Molar
What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, will result in the combined wave having an amplitude 1.20 times that of
How much sodium hydroxide in grams must be added to a sampleof seawater to completely precipitate the 83.2 mg of magnesiumions present?
Force 2 has a magnitude of 20.0 N and points along the +x axis. What must be the magnitude and direction (specified by the angle in the drawing) of the third force 3 such that the vector sum of the
The diffusion coefficient for nitrogen insteel at this temperature is 6.2 × 10-11m2/s, and the diffusion flux is found to be 3.5 ×10-7 kg/m2-s.
The wire is 120cm long and is vibrating in its third harmonic. If the speed of sound in air is 340m/, what is the speed of transverse waves in the wire?