Answers by Changbin Du
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Answers by Changbin Du

Answers by Changbin Du
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Which is the difference between impairment hazard, performance hazard and situational hazard?
answered Feb 19, 2020
5 votes
160k views
Rubidium has two naturally occurring isotopes with masses 84.91 amu and 86.91 amu and has an atomic mass of 85.47 amu. part a which mass spectrum is most likely to correspond to a naturally occurring sample
answered Oct 24, 2019
4 votes
13.3k views
To determine whether a graph of a relation is also a function, Shayla declared that the Y axis is a vertical line and the counts numbers of times that the graph intersects the Y axis. If a graph has exactly
answered Sep 15, 2019
5 votes
211k views
Why does the hand need an oven mitt in order to pick up the pot from the stove?
answered May 8, 2019
4 votes
127k views
Which term describes an action that can damage or compromise an asset?
answered Apr 8, 2019
4 votes
140k views
The focal length is the distance from the lens (or mirror) to the: image object focal point center of curvature
answered Mar 13, 2019
4 votes
115k views
An administrator wants to create four subnetworks from the network address 192.168.1.0/24. what is the network address and subnet mask of the second useable subnet?
answered Mar 9, 2019
4 votes
206k views
Which of the following statements about civil rights in China is false? A. There is no freedom of speech. B. There is no freedom of the press. C. There are many political parties. D. Protests against the
answered Oct 20, 2018
2 votes
133k views
True or false a plotter is a kind of printer that creates output by drawing lines with pens
answered Sep 3, 2018
3 votes
111k views
What is the geometric mean between 7 and 9?
answered Jul 17, 2018
5 votes
18.6k views
Please create 3 different goals, one that pertains to each of the 3 aspects of health.
answered May 9, 2018
6 votes
189k views
Which of the following most accurately labels the conflict between Louisa and her father, Mr. Gradgrind in Hard Times, by Charles Dickens? A.man v. man B.man v. self C.man v. nature D.man v. society
answered Mar 29, 2018
3 votes
35.8k views
49.564 expanded form using fraction or decimal
answered Nov 29, 2017
5 votes
113k views
Jazz bought 3/4 of a dozen rolls how many rolls did he buy
answered Oct 11, 2017
2 votes
49.3k views
If 80 is 80% of a value , what is that value
answered Aug 7, 2017
5 votes
74.7k views
Solve for x in the equation C = 8.5x + 6y. Show all work.
answered Apr 10, 2017
3 votes
231k views
A snail crawls 300 cm in 1 hour. Calculate the snail’s speed in each of the following units. a. centimeters per hour (cm/h) b. centimeters per minute (cm/min) c. meters per hour (m/h)
answered Dec 21, 2016
0 votes
113k views
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