2. On a frictionless air track, a 0.15 kg glider moving to the right collides with and sticks to a stationary 0.25 kg glider. The net momentum of this system after the collision is 0.18 kg. m/s.
What is the speed of the gliders after the collision?
0.45 m/s
0.66 m/s
1.32 m/s
0.97 m/s

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories