Author Question: What is the maximum distance we can shoot a dart, from ground level, provided our toy dart gun gives ... (Read 126 times)

jasdeep_brar · **on:** Jul 29, 2018

What is the maximum distance we can shoot a dart, from ground level, provided our toy dart gun gives a maximum initial velocity of 2.78 m/s and air resistance is negligible?

A) 0.789 m
B) 1.58 m
C) 1.39 m
D) 0.394 m

Question 2

Which one of the following is true for the wavelength of the photon emitted when an electron in a hydrogen atom jumps from the ni = 70 state to the nf = 2 state

as compared to the wavelength of the photon emitted when the electron jumps from the ni = 4 state to the nf = 2 state?
A) They are equal.
B) It is shorter.
C) It is longer.
D) The wavelength of the photon is not related to the change in state.