How would the tides change if the Earth's weight was doubled

What is the length x of the side of the triangle below? (hint: use the cosine function)

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 at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

What are some important factors to consider when choosing a warm-up before your workout?