Carlos is studying the characteristics of a fundamental force. The force is sometimes repulsive and sometimes attractive. Which
force could Carlos be studying? a.gravitational or strong nuclear
b.electromagnetic or weak nuclear
c.weak nuclear or strong nuclear
d.electromagnetic or gravitational
The answer to this question would be: <span>b.electromagnetic or weak nuclear </span> The electromagnetic force can be repulsive or attractive because it was influenced by the magnetic charge. The same charge (positive with positive) will be repulsive but different charge will be attractive(negative and negative). The gravitational force will always be attractive, not repulsive. Weak nuclear can do both like electromagnetic force.
DNA, or deoxyribonucleic acid, is a long chain molecule that plays a central role in life on earth. The information encoded in strands of DNA controls the genetic makeup of organisms. The DNA molecule has a backbone of sugars and phosphate groups off of which hang simpler units called nucleotide bases.
