4.A force of 40.0 N is needed to compress a spring 0.200 m. A 1.00 x 10-2 kg ball
a) Calculate the work done to compress the spring. (2 marks)
b) What happens to the work done on the spring ? (1 mark)
c) If the spring is released, what happens to the energy of the spring? (1 mark)
d) Calculate the total mechanical energy of the ball at the instant it leaves the spring. (2 marks)
e) What will be the speed of the ball at the instant it leaves the spring? (2 marks)
f) If the ball is fired up into the air by the spring, how much gravitational potential energy will it gain? (1 mark)
g) What will be the maximum height of the ball? (2 marks
6.Criteria for evaluation can change depending on the times, circumstance, and most importantly, with audience. This assignment will focus
audience. This assignment will focus on how criteria can change and how you need to tailor your essay to these changing audiences.
In good times, people may want homes with soaring entryways, lots of space and premium appliances. In tougher times, they may care more about efficient use of space, quality insulation, and energy efficient appliances. When gas prices are low, people love to buy SUVs and trucks, but when gas prices get higher, they prefer hybrid cars with good fuel efficiency.
Think of two scenarios, much like the ones above, where different audiences or different times create different criteria for evaluation. For example, what impact might global warming have on the way we determine desirable places to live or vacation? How might a changing economy change the way we view successful careers? If people across the globe continue to put on weight, how might standards of beauty change?
Si i have this assignment for English I just don't understand it here is the assignment:
Explore two scenarios in which change might revise customary values and standards for evaluation.
Each scenario should be a paragraph of at least 100 words in length.