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While in Europe, if you drive 113Km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 39.0mi/gal?
When is it more likely for a light bulb, filament, to burn out, when it is switched on or after it has been burning for a while? What is the reason for this behavior?
Calculate the orbital period of Pluto (in yr) from knowledge of G, the mass of the sun (M = 1.99×1030 kg), and the orbital radius of Pluto of 3.96×101A.U. Given that the gravitational fo
Question: At the top of Earth's atmosphere, sunlight has an average intensity of 1380W/m^2 .If the average distance from Earth to the Sun is 1.5*10^11m, at what rate does the Sun radiate energy?
(a) A wire 1 m long is perpendicular to a magnetic field of 0.01 T. What is the force on the wire when it carries a current of 10 A? (b) What is the force on the wire when it is parallel to the magn
A thin-walled metal sphere has a radius of 25 cm and carries a charge of 2.0x10^-7 C. Find E for a point (a) inside the sphere, (b) just outside the sphere, and (c) 3.0 m from the center of the sphe
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 28° incline. The sphere has a mass M = 5.2 kg and a radius R = 0.28 m. What is the
A stick of uniform density with mass M = 8.3 kg and length L = 0.8 m is pivoted about an axle which is perpendicular to its length and located 0.15 m from one end. Ignore any friction between the st
C6H6 burns in air to produce CO2 and H20. Calculate the heat release in KJ/g of the compound reacted w/ oxygen. The standard enthalpy of formation of C6H6 is 49.04 KJ/mol.
The work function for cesium, 1.81 eV, is much lower than the work function for other metals. a) What is the photoelectric cut-off wavelength?
A line in the x-ray spectrum of gold has a wavelength of 18.5 pm(=18.5x10^-12 m) The emitted x-ray photons corresponds to a transition of the gold atom between two stationary states, the upper one o
During the dehydration reaction when acetaldehyde was reacted with KOH in ether, an intermediate was formed. What was this intermediate that was eventually converted to the final product?
The inhaled air contains 0.50% H2O and 20.9% O2 by volume; the exhaled air contains 6.2% H2O and 15.3% O2 by volume. How many moles of H2O are expelled from the body each minute?
The pressure increases from 1.10 atm to 3.06 atm, and the volume of the sample changes from 2.67 L to 4.57 L. To what temperature, in oC, was the methane heated?
The reaction of magnesium metal with HCl yields hydrogen gas and magnesium chloride. What is the volume, in liters, of the gas formed at 736 torr and 18 oC from 4.49 g of Mg in excess HCl?
The pressure on a balloon holding 411 mL of an ideal gas is increased from 211 torr to 1.00 atm. What is the new volume of the balloon (in mL) at constant temperature?
A 575 ohms resistor and a 260mH inductor are connected in series with an ac generator with an rms voltage of 15.0V and a frequency of 65.0Hz. What is the rms current in this circuit?
If a molecule of NO diffuses a distance of 0.778 m from a point source, calculate the distance (m) that a molecule of He would diffuse under the same conditions for the same period of time.
A gas thermometer registers a pressure of 2.79 kPa when measuring the boiling point of water. What pressure in pascals would register when measuring the triple point of water?
A gas at a temperature of 382 K, a pressure of 197 kPa and occupying a fixed volume of 0.38 m3, is heated so that the temperature of the gas rises by 34 K. What is the pressure of the heated gas? Gi
Draw a lewis structure for AlF6 3- ion. include lone pair electrons. you do not need to include formal charges in your structure.
A system consists of 0.697 kg of water at 80 degrees C. A paddle wheel does 42 kJ of work stirring the water. The heat energy lost to the environment is 15 kJ. What is the final temperature of the s
The mass of ethanol needed to fill the tube is found to be 11.40 . The density of ethanol is 0.789. Calculate the inner diameter of the tube in centimeters.
A setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal traction force to an injured leg. (Let m = 6.05 kg and ? = 81.0°.) (a) Determin
The resulting organic solution is extracted with 10ml of water. The Kp for 9-fluorenone in diethyle ether/water is 9.5, how much would remian in the ether layer?