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How many grams of precipitate are formed if 204 mL of a 0.896 Maluminum sulfate solution and 386 mL of a 5.46 M sodium hydroxide solution are mixed together?
A plane ,driving at an angle of φ with the vertical, releases a projectile at an altitude of 730m. The projectile hits the ground 5.0s after it was released, having travelld a horizontal distan
In order for the pressure of a fixed mass of gas at 13.2°Cto change from 2 atm to 3 atm and its volume to go from 4 L to 5 L,what must the final temperature become?
The spheres are given identical charges and the midpoint of the thread is then suspended form a point on the ceiling. The spheres come to rest in equilibrium, with their centres 15cm apart. What is
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is3.26 x 105 m/s.
Find the coefficient of kinetic friction µk between the backpack and the elevator floor. (Use any variable or symbol stated above along with the following as necessary: g.)
Calculate the pH of a solution prepared by mixing 15.0 mL of 0.10 MNaOH and 30.0 mL of 0.10 M benzoic acid solution. (Benzoic acid ismonoprotic; its dissociation constant is 6.5x10-5.)
A rocket-powered hockey puck has a thrust of 2.70 N and a total mass of 2.30 kg. It is released from rest on a frictionless table, 2.50 m from the edge of a 2.10 m drop. The front of the rocket is p
A 1.0m length of straight wire carries a current of 21 A in a uniform magnetic field of 60 mT whose direction is at an angle of 39 degrees from the direction of the current. Find the force on the wi
A meteorologist for a TV station is using radar to determine the distance to a cloud. He notes that a time of 0.28ms elapses between the sending and the return of a radar pulse.
Two solutions of the same compound have absorbances of 0.52 and0,34 at a wavelength of 510nm. If the solution with the higher absorbances has a molarity of 0.18, what is the molarity of the solution
On December 1, 1783, Jacque Charles became the first human topilot a non-tethered hydrogen balloon. He flew the balloon for 15miles and stayed in the air for a total flight time 45 minutes.
What force causes the centripetal acceleration when the coin is stationary relative to the turntable? What is the coefficient of static friction between coin and turntable?
Assuming that the wire has a resistance of 2.1ohms, over what period of time did the flux increase? If the current had been only 18A , how long would the flux increase have taken?
Isobutyl alcohol has a boiling point of 108 oC. How would you modify the procedure used in the experiment to determine its molar mass.
Given that the capacitance of the pacemaker is 110 µF and that the battery has a voltage of 9.0 V, what value should the resistance have?
The resistivity of the material of a wire is 1.76 × 10-8 Om. If the diameter of the wire is 2 × 10-3 m and its length is 2 m, what is its resistance?
What is the flux through the loop's plane if it is at an angle of 36 degrees to the field? What is the flux through the loop's plane if it is perpendicular to the field?
A block with a mass of 325g is connected to a spring (k= 488 N/m) and oscillates back and forth on a very smooth surface. If the mass is released from rest at x= 8.50 cm find: a) the force acting on
Air enters an adiabatic compressor at 100 kPa and 17°C at a rate of 2.4 m3/s, and it exits at 257°C. The compressor has an isentropic efficiency of 84 percent. Neglecting the changes in kine
Calculate the molar concentration of a solution prepared by dissolving 2.34 g of sodium sulfate (MW = 142) in enough water to make 250 ml of solution.
How long does it take the proton to complete the quarter circle? Find the net force (magnitude) on a proton while it is in the field.
What is the direction of the first ball after the collision? Give the direction as an angle south of east.
Caculate the fraction of atom sites that are vacant for copperat its melting tenmperature of 1084C (1357K). Assume an energy for vacancy formation of .9 eV/atom
One section, having a mass of 4.80×105 kg, is blown straight backward with a speed of 1.80×106 m/s. A second piece, with mass 8.10×105 kg, continues forward at 1.30×106 m/s. Wh