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Assuming that the distance between pairs of alpha particles is 3.0 x 10^-15 m, what is the electric energy (in eV) of this arrangement of alpha particles? Treat the alpha particles as pointlike part
At an instant when the distance between the two particles is 2m, the kinetic energy of the moving particle is 16J. Determine the distance separating the two particles when the moving particle is mom
During a test of a bulletproof vest, a handgun is fired at point blank range. the mass of the bullet is 2.12 g and it takes .341 s to travel through the gun barrell, during this time it has a consta
If the blood bag is suspended 0.70 above the needle, how long does the transfusion take? (Neglect the viscosity of the blood flowing in the plastic tube between the bag and the needle.)
A 9.0V battery supplies a 2.5mA current to a circuit for 5.0hr. a.) How much charge has been transferred from the negative tothe positive terminal?
Two identical swimmin pools are filled with uniform spheres of ice packed as closely as possible. The spheres in the first pool are the size of grains of sand; those in the second pool are the size
If the potential difference between the wire and the shell is 1.0x10^3 volts, what is the electric field at the surface of the wire? At the cylinder?
If a reactant is used up according to a first order rate equation, and the initial concentration of the reactant is 3.2 mol/L, what is the concentration of the reactant after two half-lives have pas
An ideal gas has the following initial conditions: Vi = 495 cm3, Pi = 6 atm, and Ti = 100°C. What is its final temperature if the pressure is reduced to 1 atm and the volume expands to 1000 cm3?
Earth's oceans have an average depth of 3800 m, a total area of 3.63E8 km^2, and an average concentration of dissolved gold of5.8E-9 g/L.
A passenger feels the seat of the car pushing upward on her with a force equal to 1.67 times her weight as she goes through the dip. If r = 26.3 m, how fast is the roller coaster traveling at the bo
Assume that an average household in Southern California uses 0.5acre-foot of water per year, and that the cost of a kWh ofelectricity is $0.19. Calculate the annual cost of pumping water to the aver
What is the minimum speed that the ball must have to make the field goal? assume appropriate aiming
Why is it not possible for asalt with the formula M3X to have a face centered cubic lattice ofX anions with M cations in octahedrals holes.
A 22.2 kg mass is attached to the cart using a massless string draped over the end of a frictionless pulley at the top of the track. What is the expected acceleration of the cart along the air track
What is the average kinetic energy of a Helium atom at 300 K? What is the averagekinetic energy of an Argon atom at 300 K?
Suppose N electrons can be placed in either of two configurations. In configuration 1, they are all placed on the circumference of a narrow ring of radius R and are uniformly distributed so that the
What was the direction of the mug's velocity just before it hit the floor? (Use any variable or symbol stated above as necessary.)
Aliquots of a 0.5 mg/ml standard of BSA are used to construct a standard curve for the bradford protein assay. The tubes contains the following amounts of the BSA solution: 0,20,40,60,80, and 100&mu
After a package is ejected from the plane, how long will it take for it to reach sea level from the time it is ejected? Assume that the package, like the plane, has an initial velocity of 260 in the
The pka of heppes is 7.55 at 20 c and its mw is 238.31. Calculate the amounts of heppes in grams and of 0.1M NaOH in ml that would be needed to make 300 ls of 0.2M heppes buffer at pH of 7.2.
A 0.10 kg ball is thrown straight up into the air with an initial speed of 15 m/s. Find the momentum of the ball halfway to its maximum height.
Find the tensions in the rope to the left and to the right of the mountain climber.
What must be the magnitude and direction of the third force, such that the object continues to move with a constant velocity?
Find an expression for the maximum safe period of rotation, T, in terms of the variables given above, and the gravitational acceleration, g.