Two rods are made from materials that have different Young's moduli. The rods are constructed to have the same length and same cross-sectional area. The same forces pull similarly on each rod. The rod with the larger Young's modulus will stretch more than the rod with the smaller Young's modulus.

A. True
B. False

False

Explanation:

Let the Young's modulus of two different material is Y and Y'

Let F is the force applied, L is the initial length and A is the area of crossection.

By the formula of Young's modulus

Increase in length is inversely proportional to the Young's modulus, so more is the value of Young's modulus lesser be the extension in the length of rod.

Thus, the given statement is false.  

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

talk back to him about the sport and show him your expertise or leave the room