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A shot putter throws the shot with an initial speed of 15.3 m/s at a 35.0 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a
An open-pit coal mine consumes 71 hectares of land, down to a depth of 23 m, each year. What volume of earth, in cubic kilometers, is removed in this time?
The dipole moment and bond distance measured for the highly reactive gas phase OH molecule are 1.78D and 0.98Ao, respectively. Calculate the effective charges on the H and O atoms of the OH molecule
A long, straight wire (radius = 1.8 mm) carries a current of 4.7 A distributed uniformly over a cross section perpendicular to the axis of the wire. What is the magnitude of the magnetic field at a
what volume of 0.200M hcl must be added to 250mL of 0.300M sodium mandelate to produce a buffer of solution with a pH of 3.37?
The aluminum wire used for some of these lines has a cross-sectional area of 4.60 10-4 m2. What is the resistance of ten kilometers of this wire?
What is the pH change of a 0.270M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.145M with no change in volume?
A long, straight wire (radius = 2.5 mm) carries a current of 4.0 A distributed uniformly over a cross section perpendicular to the axis of the wire. What is the magnitude of the magnetic field at a
A rolling wheel of radius r has translational velocity v as well as angular velocity w. Combine these equations to find an expression for w in terms of v.
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution before the addition of any HNO3. The Kb of NH3 is 1.8 × 10-5.
A roller coaster at the top of a 39.0m high vertical loop is traveling 13.8m/s. Find the maximum speed of the cars as they move through the bottom of the loop.
What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
The longest recorded pass in an NFL game traveled 89 yards in the air from the quarterback to the receiver. Assuming that the pass was thrown at the optimal 45 ^circ angle, what was the speed at whi
Calculate the boiling point elevation of a solution containing 37.5 g of glucose (C6H12O6) dissolved in 408.6 g of water. Calculate the freezing point depression for the same solution.
A 2000 kg car starts from rest at the top of a driveway that is sloped at an angle of 20° with the horizontal. An average friction force of 4000 N impedes the car's motion so that its speed at t
It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.180 s, what is the average force exerted on the ball by the wall?
zinc metal reacts with hydrochloric acid (HCI to produce zinc chloride and hydrogen gas. how many moles of HCI are needed to react with 2.30 moles of Zn
Two balls, of masses m A = 37 g and m B = 76 g, are suspended as shown in the figure . The lighter ball is pulled away to a 60 degrees circular angle with the vertical and released. What is the spee
A asteroid is heading directly toward the center of the earth at a steady 22 . To save the planet, astronauts strap a giant rocket to the asteroid perpendicular to its direction of travel.
In a double-slit interference experiment, the wavelength is 574 nm, the slit separation is 0.1 mm, and the screen is 70 cm away from the slits. What is the linear distance between adjacent maxima o
A uniform electric field of magnitude 260 V/m is directed in the negative y direction as shown in the figure below. The coordinates of point A are (-0.200, -0.300) m, and those of point B are (0.40
Draw a Gaussian surface that takes advantage of what you know about the electric field. Use Gauss's law to determine the electrical field above the conductor.
What is the relationship between liquid pressure and depth of a liquid? Between liquid preesure and density?
The Vitamin C tablet changed color at 23.7 mLs of Iodine. how do you find out how much vitamin c is in the tablet?
A beam of electrons is incident on a slit of variable width. If it is possible to resolve a 1% difference in momentum, what slit width would be necessary to resolve the interference pattern of the e