What is the system of blood and blood vessels and the heart

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Identify some abiotic characteristics of the tundra biome.

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.