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1 cubic Meter, (1.00m^3) of aluminum has a mass of 2.70x10^3 kg, and a 1.00m^3 of iron has a mass of 7.86x10^3 kg. Find the radius of a solid aluminum sphere that will balance a solid iron sphere of
Calculate the concentration of CN- and the pH for asolution that is made by mixing 50mL of 0.1 M HClO4 with4.2 mL of 0.438 M NaCN. Assume HClO4 to be a strongacid, NaCN to be a strong electrolyte (d
Suppose that you wish to fabricate a uniform wire out of 0.800 g of copper. Assume the wire has a resistance R = 0.300 , and all of the copper is used. (a) What will be the length of the wire?
Calculate the final temperature if the same gas under goes an adiabatic expansion against an external pressure of P = 1.00 bar to a final pressure of P =1.00 bar.
A person stands at the base of a hill that is a straigt incline making an angle omega with the horizontal. For a given initial speed, at what angle theta(from the horizontal) should objects be throw
(a) At what time is the water mass greatest, and (b) what is that greatest mass? In kilograms per minute, what is the rate of mass change at (c) t = 2.1 s and (d) t = 4.7 s?
The mass of the rod is M and the magnitude of the impulse applied by the blow is J. (Use any variable or symbol stated above as necessary.) (a) Immediately after the rod is struck, what is the veloc
What happens to therate if the concentration of potassium t-butoxide is tripled and the concentration of ethyl bromide is doubled?
If, instead, the gold is drawn out into a cylindrical fiber of radius 2.400 µm, what is the length (in m) of the fiber?
A system consisting of 57.5 g of liquid water at 298K is heated using an immersion heater at a constant pressure of1.00 bar. If a current of 1.50 A passes through the 10.0-ohmresistor for 150 s, wha
A 360g block hangs from a spring with k=5.19 N/m. At t=0s, the block is 18.4 cm below the equilibrium position and moving upward with a speed of 140 cm/s. What is the block's speed when the displac
How many beta particles are emitted in 180 s by a 3.75-mgsample of Cobalt-60? What is the activity of the sample in Bq?
A laser emitting at 632.8nm illuminates a double slit. A screen is positioned 2.00 m from the slits. Interference fringes are observed with a separation of 1.0 cm. Determine the angle of the first-o
(a) Find the tension of this string. Give the answer in pounds. The density of steel is 7.86 g/cm^3. (b) There are 228 strings in a piano. (Some notes use more than one string.) If we assume that th
Assume that the smallest volume that you can dispense is 1.0 ml and that you have 3.5 L of an in expensivediluent. You have a stock solution that has a concentration of8 M, and you need to make 100
Two particles are fixed to an x axis: particle 1 of charge q1 = +2.10 x 10-8 C at x = 20 cm and particle 2 of charge q2 = -5.00q1 at x = 70 cm. At what coordinate on the axis is the net electric fiel
A quantity of electricity equal to 9.263 x 104 C passes through a galvanic cell that has an Ni(s) anode. Compute the maximum chemical amount, in moles, of Ni2+ (aq) that can be released into solutio
A small object A, electrically charged, creates an electric field. At a point P located 0.250 m directly north of A, the field has a value of 40.0 N/C directed to the south. What is the charge of o
An extremely long nonconducting cylinder has a radius R0. The charge density within the cylinder is a function of the distance R from the axes, given by: pE = p0(R/R0)2. What is the electic filed ev
Pat builds a track for his model car out of wood. The track is 19.00 cm wide, 5.00 m long, and 2.78 m high, and is solid. The runway is cut such that it forms a parabola by the equation y = (x - 5)2
Compound A has a solubility of 18 grams per 100 grams of water at25 Celsius. Cooling a saturated 200 g solution of compound Afrom 84 celsius to 25 celsius results in a precipitation of 19grams of t
Earth is approximately a sphere of radius 6.37 × 106 m. What are (a) its circumference in kilometers, (b) its surface area in square kilometers, and (c) its volume in cubic kilometers
In the manufacturing of computer chips, cylinders of silicon arecut into thin wafers that are 3.00 inches in diameter and have amass of 1.50g of silicon.
If the wires each make a 30 angle with the vertical, what total charge Q must have been applied to the electroscope? Ignore the mass of the wires.
Vitamin D, responsible for strong bones, has a molar mass of 384and is known to be 84.4% carbon. How many carbon atoms are there in each molecule of Vitamin D?