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An 79-kg stuntman jumps from a window of a building situated 33 m above a catching net. Assuming that air resistance exerts a 100-N force on the stuntman as he falls, determine his velocity just be
The rxn 2NO + O2 --> 2NO2 is believed to occur by the mechanism. Under what conditions does the rate equation reduce to second-order kinetics in NO and first kinetics in O2?
How much heat would be required to convert 35.0g of ammonia (23.4KJ/mol) from the liquid to the gas phase?
A car of mass M = 800 kg traveling at 40.0 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires.
at these currents. The weight of this battery is 460 g. (a) Calculate the power, specific power, and specific energy of this battery in watts, watts per kilogram, and watt hours per kilogram at 5, 4
A space station in the form of a lorge wheel, 124 m in diameter, rotates to provide an "artificial gravity" of 9.3 m/s^2 for people located on the outer rim. Find the rotational frequency of the whe
A 18000 airplane lands with a speed of 72 on a stationary aircraft carrier deck that is 115 long. Find the work done by nonconservative forces in stopping the plane.
Write the net ionic equation for this neutralization reaction, including the states of matter for the reactants and products.
An airplane with a wing span of 30 m flies horizontally at a location where the downward component of the Earth's magnetic field is 5.0 × 10-5 T. Find the magnitude of the induced emf between
If Brand A, has a cost per tablet of 3.29cents/tablet and one tablet neutralizes 0.0128 mole of acid. What is the cost effectiveness of Brand A?
You determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter?
A boat moves through a river at 8.0 m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 3.0 m/s, how long does it take the boat to make a rou
acetylene can be made by reacting calcium carbide with water what's the maximum amount of heat that can be obtained from the combustion of acetylene starting with 74.6 g of CaCo2
A physiological saline solution contains 161 mEq/L each of Na+and Cl- , How many moles each of Na+ and Cl- are in 0.700 of the saline solution?
the pump driving the water feature is located 175 ft away (laterally) and is to be installed in a pit 15 ft deep (below grade) what must the pressure be at the pump discharge.
A 0.30 kg softball has a velocity of 12 m/s at an angle of 35° below the horizontal just before making contact with the bat. The ball leaves the bat 2.0 ms later with a vertical velocity of magn
The flask was then shaken until the solution was uniform. A 50.0 rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
A tank of water sits at the edge of a table of height 2.2 m. The tank springs a very small leak at its base, and water sprays out a distance of 2.0 m from the edge of the table. What is the water l
A sample of a bright blue mineral was weighed in air, then weighed again while suspended in water. An object is buoyed up by the mass of the fluid displaced by the object. In air, the mineral weighe
A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum height will a 301.5 m drive reach if it is launched at an angle of 25.0 degrees to the ground?
A certain reaction has the following general form.Determine the value of the rate constant for this reaction. Calculate the half-life for this reaction.
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, determine the average resistance force exerted on him by the wate
For the reaction Ag2S(s) > 2Ag+ (aq) + S2- (aq) what happens to the equilibrium position if ammonium sulfide is doubled ?
What is the rms speed of nitrogen molecules contained in an 7.6 m^3 volume at 2.2 atm if the total amount of nitrogen is 1200 mol?
A person pulls on a 50 kg desk with a 200N force acting at a 30 degree angle above the horizontal. The desk does not budge. Draw a force diagram for the desk.