An electron and an alpha particle (a helium-4 nucleus) each have the same non-relativistic speed. Which has the greatest kinetic energy, and which has the shortest de Broglie wavelength?
a. the alpha particle, the alpha particle
b. the alpha particle, the electron
c. the electron, the alpha particle
d. the electron, the electron
A
You might also like to view...
A person weighs 155 pounds. What is the person's weight in Newtons?
A. 155 N B. 689 N C. 39.3 N D. 392 N
An astronomer surveying the sky toward a random region of the sky finds, by chance, the most distant galaxy ever detected. This is an example of
A) nonscience B) discovery science C) hypothesis-driven science D) pseudoscience
A camper is about to drink his morning coffee. He pours 400 grams of coffee, initially at 75°C into a 250-g aluminum cup, initially at 16°C
What is the equilibrium temperature of the coffee-cup system, assuming no heat is lost to the surroundings? The specific heat of aluminum is 900 J/kg ? K, and the specific heat of coffee is essentially the same as that of water, which is 4186 J/kg ? K. A) 45°C B) 62°C C) 65°C D) 68°C E) 71°C
Why do you think that more plants per capita in Europe than in the United States burn municipal solid waste? Give your reasons, and explain the differences
What will be an ideal response?