Amelia goes for mountering with some selected friend of her batch .Intially she is scared of it .Her trainer John tells her that she should be strong. John provides her on strong rope and teaches how to climb the mountain. A. name the fibre that is used to making climbing rope? B. what can we learn from Amelia? C. write value of John as a trainer? pls give correct answer.​

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Elements that have one valence electron and are very reactive are called