How many red photons (4.00e14 Hz) would it take to equal the energy of 20,000. green photons (565 nm)? A. 2.66e-5
B. 4.27e25
C. 2.66e5
D. 2.89e5

What is the number of moles in 15.0 g ash3?

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?