What is the maximum distance we can shoot a dart, from ground ...

[jasdeep_brar]

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.

[tjayeee]

Answer to Question 1

A

Answer to Question 2

B

[jasdeep_brar]

TYSM

[daiying98]

Gracias!