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What is the force felt by the electrons and the nuclei in the rod when the external field described in the problem introduction is applied? (Ignore internal fields in the rod for the moment.)
During an all-night cram session, a student heats up a (0.6 10-3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 18°C, and the beaker is filled to the brim.
What is the maximum kinetic energy of a photo electron ejected from cesium by 555nm light? note that if the wavelength of the light used to irradiate the cesium surface become longer than 600 nm.
The gravitational force between two sumo wrestlers just before they collide r=0.025 m is 2.77x10^-3 N if one wrestler has a mass of 157 kg, what is the mass of the other wrestler?
A mass of 355 g connected to a light spring of force constant 23.7 N/m oscillates on a horizontal, frictionless track. The amplitude of the motion is 5.9 cm. Calculate the total energy of the system
Find the wave speed for a transverse wave on a 5 m long clothes line with a mass of .2 kg ( for the whole 5 m) with a tension 160 N
What is the "effective" pressure difference across the membrane? If the hydraulic conductance of the membrane is 3 ml/hr/m2/mm Hg, what is the filtration rate of the solvent?
A daredevil decides to jump a canyon. Its walls are equally high and 11 m apart. He takes off by driving a motorcycle up a short ramp sloped at an angle of 24°. What minimum speed must he have i
The cross section area of the tank is 1 m^2 if the height of the tank water above the hole is maintained at 10 m what is volumetric flow rate out of the hole.
A 5.70 102 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process.
In some ways, all these atoms resemble a Bohr hydrogen atom with its electron in a high-numbered orbit. Explain why you might expect it to be the case?
Assuming all factors other than the activation energy remain the same, by how much does the rate of the reaction increase?
A tennis player receives a shot with the ball .06 kg traveling horizontally at 50 m/s and returns the shot with the ball traveling horizontally at 40 m/s in the opposite direction. what is the impu
What is the concentration (M) of Cd2+(aq) in the sample? Can you use the equation C= n/ V, find n , which is n=m/M and then i dont know what to do.. use avogadro's equation and find out the energy per
A billiard ball moving at 5.00m/s strikes a stationary ball of the same mass. After the collisions, the fist ball moves at 4.33m/s and at an angle of 30.0 degree with respect to the original line o
A buffer consisting of equal amounts of a weak acid and its conjugate base has a pH of 4.4. A small amount of NaOH was added to this buffer solution. How will this affect the pH of the buffer?
When you exercise, lactic acid, CH3CH(OH)COOH, is produced as a product of metabolism. The lactic acid enters the bloodstream. explain how the buffer acts to neutralize the lactic acid.
An ocean liner leaves New York City and travels 19.2 ° north of east for 186 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the shi
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How much force must you exert to keep the pole motionless in a horizontal position?
A 3.00 x 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.00 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 x
Calculate the force of gravity between a human child (mass = 32 kg) and the planet Mars (mass = 6.4 1023 kg), when Mars is at its closest to Earth (distance = 8. 1010 m).
H2CO3, to carbon dioxide, CO2, and water, H2O. explain why breathing faster helps to eliminate excess lactic acid when you exercise.
Complete combustion to form carbon dioxide and water requires 1.120mol of oxygen. Calculate the mass percent of ethane in the original mixture.
A car is driven around a curve with a radius of 0.320 km and the car has a speed of 28 m/s. What is the centripetal acceleration?
A submarine dives 100.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of the submarine's displacement? (Assume that upward and the direction of the