Arocket moves downwards with constant speed of 800 m/s along a parabolic path. the equation of the path is yy = 600 − xx2 121. when the rocket is at a point pp, the angle thetatheta measured counterclockwise from the to this point on the path is 60o. find: (a) the and coordinates of the point pp. (b) plot the path to scale (use matlab to do this). draw the normal and tangential unit vectors �⃗ and �⃗ at the point pp. what is the angle between the tangential unit vector �⃗ and the positive direction of the

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)