Pieces of rock that strike the surface of a moon or planet

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?