For a double slit, which of the following statements are true (select all that apply)? a) The slit separation determines the positions and widths of the intensity peaks

b) The slit width determines the positions and widths of the envelope

c) The slit width determines the positions and widths of the intensity peaks

d) The slit separation determines the positions and widths of the envelope

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

An uplifted block of rock between two normal faults

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?