The x component of vector is -27.3 m and the y component is +43.6 m. (a) what is the magnitude of ? (b) what is the angle between the direction of and the positive direction of x?

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.