The position of a particle that moves along an x axis is given by x = 2.00 t^2 + 4.00t + 30.0, with x in meters and time t in seconds. What is the velocity of the particle at t = 2.00 s?

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

Convection currents are caused by differences in what two things?

What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change