What is the energy of a single uvphoton having a wave
A photon of ultraviolet (UV) light possesses enough energy tomutate a strand of human DNA. What is the energy of a single UVphoton having a wave length of 24nm?
What is the energy of a mole of UV photons having a wavelength of24 nm?
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Over a time interval of 1.81 years, the velocity of a planet orbiting a distant star reverses direction, changing from +20.2 km/s to -17.4 km/s. Find the following values, include the correct algebraic sign with your answers to convey the directio
What is the maximum power that could be produced by this heat engine? what would be the thermal cycle efficiency of your maximum power engine?
A 5.00-g quantity of a diprotic acid was dissolved in water and made up to exactly 250mL. Calculate the molar mass of the acid if25.0mL of this solution required 11.1mL of 1.00M KOH for neutralization.
If there were no ventilation, by how much would the temperature of the air rise over a period of 2.0 h due to the metabolism of the people (70 \rm W/person)? Assume the room is initially at 293 {\rm K}
A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is the energy of a single UVphoton having a wave length of 24nm?
Based on the ionization energies of the alkali metals, which alkalimetal would you expect to undergo the least exothermic reaction with chlorine gas?
A refrigerator has a coefficient of performance of 3. The ice tray compartment is at -20 C, and the room temperature is 22 C. The refrigerator can convert 30 g of water at 22 C to 30 g ice at -20 C each minute. What input power is required? Ignore
What percent reduction in heat loss would be mitigated by replacing a window contaning a single pane of glass with ( a) double pane low E insulating glass.
A car traveling east at 41.9 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25.0 m/s in 3.90 s. (a) What is the magnitude and direction of the car's acceleration as it slows down?
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