1. During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. If the trebuchet launches the stones with a velocity of +9.0 m/s at an angle of 35.0° find the following: a) How long will each stone be in the air assuming the stones land at the same level as they are launched? Show all work.
9sin35=5.162 m/s
9cos35=7.37 m/s
5.16/9.8=0.527s
0.527time 2= 1.054s in the air.

b) What is the maximum height of the launched stones? Show all work.
0.5times 9.8^2times 0.527^2 = 13.337
1.365m is the maximum height.

c) What is the range (horizontal distance) that the stone will travel? Show all work
7.77m

d) What is the velocity of each stone as it hits the ground?

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

are their multiple choices ?

explanation: