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In an ionic solution, 5.8 1015 positive ions with charge +2e pass to the right each second while 6.3 x 1015 negative ions with charge -e pass to the left. What are the magnitude and direction of curre
At a particular temperature, N2O5 decomposes according to afirst-order rate law with a half-life of 3.0 s. If the initial concentration of N2O5 is 1.0 x1016 molecules/mL, what will be the concentrat
What is the pH range of a buffered solution composed of equal molar concentrations of acetic acid and acetate? (Ka= 1.8x 10-5)
The ions will separate until they make an electric field that exactly balances the magnetic force. This electric field produces a voltage that can be measured.a. What force is felt by a singly ioniz
A 1.0L vessel was initially filled with pure NOBr(g) to apressure of 4.0atm. The final Partial pressure of NOBr was 2.5 atmafter the followign equilibrium was established: 2NOBr(g) <->2NO(g) +
What is the area of the triangle formed by their positions after 2 seconds? What is the peremeter? How long until the area of the triangle formed by their positions is 10cm^2? How long until the perem
A solenoid that is 91.4 cm long has a cross-sectional area of 15.0 cm2. There are 1000 turns of wire carrying a current of 6.74 A. (a) Calculate the energy density of the magnetic field inside the s
A.) What is the minimum velocity needed at the top so that the rider completes the loop successfully? B.) Find the tangential and centripetal acceleration at the top of the loop using the velocity fro
Find the solution set of the linear system. For dependent equations, write your answer as an ordered triple in terms of z.
A solution of 0.0205 M NaOH is used to neutralize 20.0 mLH2SO4. If 45.6 mL NaOH is required to reach the endpoint, what is the molarity of the H2SO4 solution?
A massless spring has a spring constant of k = 7.85 N/m. A mass M = 0.425 kg is placed on the spring, and it is allowed to oscillate. What is the period T of oscillation? Show your work.
Find the equation of one variable for the surface area of a right circular cylinder inscribed in a cone of a height h and radius r with the base of the cylinder on the base of the cone.
A spring of constant k=11.75 N/m is hung vertically. A 0.500 kg mass is suspended from the spring. What is the displacement of the end of the spring due to the weight of the 0.500 kg mass? Show your w
The distance between the marks along the wheel is found to be 14 inches. What is the angle between the radii to the two marks?
A 50g ball travelling at 25 m/s is bounced off a brick wall and rebounds at 22 m/s. If the ball is in contact with the wall for 3.5 ms, what is the average acceleration of the ball during this time
Find an equation for the parabola that has the vertex at the origin and satisfies the given condition. Focus F(0,2). Focus F(-5,0).
(a) What are the x- and y- components of the velocity of the ball 3.20s after it leaves the cannon? (b) What are the x- and y- components of the displacement of the arrow during the 3.20s interval?
Draw a balanced redox equation for theoxidation of CuI. Thanks in advance for your help!EDIT: Upon reading the instructions more carefully (actuallybackground information for which this is a follow-
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.30 m/s at an angle of 23.0° below the horizontal. It strikes the ground 3.00 s later.
Write an equation of an ellipse with the foci at (0,+/-2) and the lenght of the major axis equal to 8. Write an equation of an ellipse with the vertices at (+/-4,0) and +/-1 as y-intercepts.
Correct to the nearest hundredth of a degree, find the angle of rotation necessary in a change of axes to rotate the xy term from the equation.
If the value has increased at a rate of 4% per year, what will its value be, correct to the nearest hundred dollars, at the end of 2010?
The sphere slides along the ground, with the same point on the sphere always touching the ground.
Ideal gases A and B are kept in a 5.0 liter container at 20C. the pressure of teh gas mixture is 2.0 atm and it tis know that 0.10mole of gas A is present in the mixture.
Two long, straight wires are separated by a distance of 11.0 cm. One wire carries a current of 2.98 A, the other carries a current of 4.22 A. Calculate the force per meter exerted on the 2.98 A wire