Does the force exerted on you by the elevator do positive or negative work when the elevator (a) goes up and (b) goes down? Explain your answers. Suppose your weight is 685N and that of your belongings is 915N. (a) Determine the work done by the elevator in lifting you and your ...
The article discusses work done, negative work and work corresponding to energy. Topics include chemical food energy, gravitational field and potential energy. Other topics such as thermal energy in muscles, kinetic friction and mechanical model analog are also discussed. Adenosine triphosphate is ...
Some people think that robots are very important for humans' future development. Others, however, think that robots are a dangerous invention that could have negative effects on society. Discuss both views and give your opinion. 可以...
They thought that a person with talent or intelligence did not need to work hard to do well. 出自-2016年12月阅读原文 They had negative views of effort, believing that having to work hard was a sign of low ability. 出自-2016年12月阅读原文 The most successful gamification platforms transform...
Negative of the work done by conservative force is equal to change in potential energy of the system . -W(c ) = U(2) -U(1) .
Work done by all the forces in region OA and BC is positive. B Work done by all the forces in region AB is zero. C Work done by all the forces in region BC is negative. D Work done by all the forces in region OA is negative. Video Solution Struggling with Work Energy And... ...
Here, as the negative output is not regulated by the feedback circuit, such a supply must be then the current sunk from the non-regulated output. The VIPerPlus source could be connected to the -5 V level, as was done on Figure 8, in ...
Besides the time spent on work, there is also the question of where work is done. “Candidates now always ask for flexibility around home working,” says Verónica Rodríguez Largacha, human resources director for Spain and...
Today, there are many tasks at home or work that have been done by robots. Is this a positive or negative development? Sample: In the current era, many tasks and work are done by robots both at home and at workplace. Personally speaking, this is a positive development. To begin with,...
Explain in your own words why work done by the system is defined as the negative of {eq}p\Delta V {/eq}, not positive {eq}p\Delta V {/eq}. Work: The amount of force required to displace a certain substance over a certain distance i...