Use the picture below to help you answer the question. A car leaves Harrisburg, PA and travels West on the turnpike. How far has the car gone in 4 hours?
Question 21 options:
A.50 km
B.70 km
C.35 km
D.0 Km

Distance is a measure of how much ground has been covered by an object in motion. The object has been covered 70 km of distance in 4 hours. Option B is correct.

What is Distance?It is a measure of how much ground has been covered by an object in motion.Distance is directly proportional to the speed of the object.Displacement:It is a vector quantity that refers to the overall change in position of the object.It is defined as the straight line distance between the initial and final position of the object.

Therefore, the object has been covered 70 km of distance in 4 hours.

Learn more about Displacement:

link

B. 70 km

Explanation:

the answer is in the graph

the line same point at 4hrs= 70km

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do u go to k12?

Question 1 : A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Question 2 (how does it affect the human immune system?) : Via cytotoxic cells. When a virus infects a person (host), it invades the cells of its host in order to survive and replicate. Once inside, the cells of the immune system cannot 'see' the virus and therefore do not know that the host cell is infected.

Question 3 (what are its components?) : The simplest virions consist of two basic components: nucleic acid (single- or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.

Question 4 (what is a viruses structure?) : All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. ... Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.

Question 5 : As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.

Question 6 : through the air, soiled objects, skin or mucous membrane, saliva, urine, blood and body secretions, through sexual contact, and through contaminated food and water.

Explanation: