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Use the information developed in the notes for formic acid as a guide to determine the concentration of [H+] and pH of 0.1N and 1N solutions of acetic acid.
a) what is the average acceleration of the bullet thru the board? b) what is the total time the bullet is in contact with the board? c) What thickness of the board would it take to stop the bullet,
Given one focus at (4,2) and the equation of one directrix as y=4, determine the equation of the ellipse with an eccentricity of 1/2.
Calculate the total energy of the child-stick-Earth system, taking both gravitational and elastic potential energies as zero for x = 0.
The solubility product ksp for mn(IO3)2 is 4.4 x 10^-7. Determine maxiumum solubility of this in moles per liter for mn(IO3)2.
A spring with a mass on the end of it hangs in equilibrium a distance of 0.4200 m above the floor. The mass is pulled down a distance 0.0600m below the original position, released, and allowed to os
A solution is made by mixing 200 mL of 5.9x10(-4)M CuCl with 150 mL of 4.3x10(-3)M NaBr. Will a CuBr precipitate form? (K(sp)=4.2x10(-8)
Two long parallel wires 5.50 cm apart carry 15.5 A currents in the same direction. Determine the magnetic field strength at a point 12.0 cm from one wire and 13.2 cm from the other.
What mass of ammonium chloride should be added to 2.55 L of a 0.155 M NH3 in order to obtain a buffer with a pH of 9.55?
Given the coordinates of one focus as (4,2) and the equation of one directrix as y=4, determine the equation of the ellipse with an eccentricity of ½.
Calculate the number of moles of Cl atoms in1.20×1024 formula units of magnesium chloride,MgCl2. Express your answer numerically in moles Cl.
A concave mirror has a focal length of 34.1 cm. The distance between an object and its image is 52.8 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the cente
An important component of blood is the buffer combination of bicarbonate ion and carbonic acid. Consider blood with a pH of7.42.
Fencing for the north and south sides costs $9 per foot and fencing for the other two sides costs $6 per foot. What is the maximum area that can be enclosed for $5400?
Assuming the energy of a single pulse is delivered to a volume of the cornea 1 mm3, and assuming the pulses are delivered so quickly that the energy deposited has no time to flow out of that volume,
Describe the path of the object by stating the radius of the circle, the position at time t = 0, the orientation of the motion, and the time t that it takes to complete one revolution around the cir
During a 63-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 7.8-mA current in a nearby secondary coil. The secondary coil is part of a circuit
A 5.0 mm diameter proton beam carries a total current of 1.5mA. The current density in the proton beam, which increases with distance from the center, is given by J = Jedge(r/R), where R is the radi
A 37741 lb force is applied to a surface that measures 90 in long and 85 in wide. Determine the pressure exerted on the surface by the force in both psi and Pa. 1 Pa = 1.45×10^-4 psi.
List all the possible rational zeros using the Rational Zeros Theorem. Use Descartes' Rule of Signs to determine the number of positive real zeros and negative real zeros.
Consider a uranium nucleus to be a sphere of radius R = 7.4x10^-15m with a charge of 92e distributed uniformly throughout its volume. (a) What is the electric force exerted on an electron when it is
In a RLC circuit these three elements are connected in series: a resistance 0r 20 ohms, a 35.0 mH inductor, and a 50.0 micro Farriday capacitor. The AC storage has an rms voltage of 100.0V and as a
Write a formula that defines, the angle swept out by the ball in radians in terms of t, the number of seconds since Bill started twirling the ball at this rate.
If the two buckets are pulled upward with an acceleration of 1.80 m/s2 by the upper cord, calculate the tension in each cord.
You throw a ball, m=2kg, with an initial velocity of 20 m/s at an angle of 60 degrees from the top of a 30m cliff. a) Using energy considerations, what is the magnitude of the velocity when it hits