How does a screw make the work of fastening two objects together easier? a. the screw changes the direction of a force - it converts linear force into rotational force. it also reduces the force required - the closer the threads, the larger the input force required to get the same output force. b. the screw changes the direction of a force - it converts rotational force into linear force. it also reduces the force required - the closer the threads, the smaller the input force required to get the same output force. c. the screw changes the direction of a force - it converts rotational force into linear force. it also reduces the force required - the closer the threads, the larger the input force required to get the same output force. d. the screw changes the direction of a force - it converts linear force into rotational force. it also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.

1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the media censorship of the media allowing people to create their own social media deleting people's social media posts without their permission question 2 (1 point) 2. when a government has total control over its citizens, including the media, it is a of government question 2 options: constitutional monarchy parliamentary democracy autocracy presidential democracy question 3 (1 point) according to the article, "social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media question 4 (1 point) china wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.