complete questions and answer to phy202 modern physics 1 tma2

Question 1 calculate the wavelength associated with the motion of a 46 golf ball at a speed of 36m/s, take h = 6.63 x 10-34js?

Answer is 4.0 x10-34m

Question 2 how many neutrons are in the nucleus 47 and 18 Ar?

Answer is 22

Question 3 which of the following is quantized in the model model?

Answer is angular momentum, energy, and radii

Question 4 the interactions which is responsible for the existence of bulk matter is the_____?

Answer is electromagnetic interaction

Question 5 evaluate they are you in addition of hydrogen E=1 in unit of electron volt?

Answer is 13.6ev

Question 6 the chemical identity of an atom is determined by the of_____ number of in its nucleus?

Answer is protons

Question 7 an electron in the ground state of the bohr atom has a radius of 0.05 nm what is a radius of the first excited state?

Answer is 0.212

Question 8 the following isotope of neone have found in nature 20 10Ne, 21 10Ne, and 21 10Ne with percentage of 90.9, 0.3, and 8.8 respectively calculate the relative mass of neon?

Answer is 20.18

Question 9 the term charge quantization referred to the fact that?

Answer is any charge is an integral multiple of the electronic charge

Question 10 an electric field of 50kv/m is perpendicular to a magnetic field of 0.20T. what is the velocity of a charge q whose initial direction is perpendicular to the both fields and which passes through the field undefeated

Answer is 2.10^5m/s