A car travels at an average speed of 16 m/s for 1 hr 20 minutes.What is the distance traveled by this car?

Is labs a file or a directory? How do you know?

Which force is responsible for keeping the Earth in orbit around the Sun?

Assuming that you start with no file named log.txt, you run the following twice: echo hi > log.txt Separately, starting fresh with no log.txt, you run the following twice: echo hi >> log.txt Give the final contents of log.txt in each case, and explain the difference between the two operators.

Informed Conclusions: Ability to synthesize findings drawn from numerical data or observable facts in order to gain a better understanding.d. How many seats of each type are there? Write a complete sentence explaining what your numerical answers mean.

Analysis: Ability to methodically examine numerical data or observable facts in order to gain a better understanding. c. Write the augmented matrix for the system of linear equations then solve using the Matrix Elimination Method or Gauss-Jordan method. Show ALL row operations and resulting matrices.

The file emails.log contains 12 lines. Predict the exact output of each of the following, and explain the difference using how each command learns about the file: wc -l emails.log wc -l < emails.log

Describe, in order, how the shell sets up the streams for a command before the program runs. Your description must be a single set of rules that correctly predicts all five rows. In particular, it must account for: why experiments 3 and 4 give different results even though both contain a > redirection and a 2>&1; and why, in experiment 5, ALERT appears on the terminal yet is not included in the count printed by wc -l.

What does ls -a add to that listing?

List the final contents of lab and of archive after the whole line finishes. Then, explain why pwd prints /home/mina/course/lab and why that output would have appeared even if the earlier commands had failed.