0. 70m 1.80 kg ballistic A 3.sokg rifle fires a 0 02kg bullet into, pendulum as Shown . The bullet burries itself in the 1.30kg ballistic pendulum and they rise to a vertical height of 0 3som . Determine the bullets muzzle speed ( whe it leaves rifle) . a ) 262 mls 6 ) 236 mls 2 options () 238 mis d ) 262mls Q ) A yokg mass moving with a Ek of 200J collides with a lsky mass having Ek of 180J - Assume the collision is inelastic and the yokg mass has IYOJ of kinetic energy ( Ex ) after the collision. Determine the amount of EK possessed by the ISKg mass after the collision if 10OJ of heat energy is released during the collision. ? options are a ) OJ b) SOJ ( ) 140J J) 230J Q)A ray of light from air , having refractive index of 100 is incident on the surface of ablock of glass (n = 1.so) atan angle of 37.6 Determine angle of refraction. a ) 240 6 ) 360 ( ) 420 2 ) 48Q) Light travelling from air enters a layer of clear liquid The speed of light thru liquid is 2 75 x 108mis. calculate the liquids index of refraction relative to air. 9 ) 0.917 b ) 1.00 C ) 1.09 d)a 75 Q) A beam of monochromatic light having wavelength of $80nm is incident on a detector The beam delivers 2 88 x10 9 of energy to the detector each second. Determine number of Photons. a ) 119 6 ) 840 ( ) 1 19 x 10% Q ) Zinc has a work function of 4.0 ev and is used in photo. Cell with light of an energy of 19 ev per photon. Determine electric the max kinetic energy (EK) of photo elections leaving the cell. a) llev b) Isev c)Iqev d) 23 evQ) An Election moving with a kinetic energy of 8 00x 10", J Strikes an atom and rebounds with akinetic energy of s.60 x 16"J. The atom then releases a photon of light . The most likely frequency of the emitted light is? a) 1.96 x 10"Hz 6) 1.21 X 10's HZ ( ) 7:54 X 10" HE d) 4 52 x 10' HE