Please answer asap its 4:45p m right now and i wanna get done with science class lol and i need help because im a bit confused. :) 1C. What is the goal of technology? Explain how a toothbrush achieves this goal

2A. Compare science and technology.
2B. Is a human leg prosthesis an example of science or technology?
2C. Explain how both science and technology must have been involved in the development of a leg prosthesis.

3A. List the positive consequences of using pesticides. then list the negative consequences.
3B. Explain the following statement, "Technology does not provide perfect solutions to problems." use pesticides as an example.

Please give me a real answer, because I have 1 brain cell lol and I really need help :')

Classify the following soils according to the uscs classification system. provide appropriate uscs designations. a) this sample of well-graded gravel with sand was obtained from a large earthen dam in vancouver, canada. the sample has 73% fine to coarse sub-angular gravel, 25% fine to coarse sub-angular sand and 2% fines. the maximum size of the particles is 75 mm. the coefficient of curvature is 2.7, while the uniformity coefficient is 12.4. b) this dark brown and wet soil with a “strong organic odor” has 100% passing the no. 200 sieve. the liquid limit of the material is 32% when not dried and is 21% when oven-dried. the plastic index is 21% when not dried. c) this sand has 61% predominantly fine sand, 23% silty fines, and 16% fine sub-rounded gravel size. the maximum size is 20 mm. the liquid limit is 33% and the plastic limit is 27%. d) this soil has 74% fine to coarse sub-angular reddish sand and 26% organic and silty dark brown fines. the liquid limit is 37% when not dried and is 26% when oven dried. the plastic index is 6% when not dried.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

Acar of mass 800kg is moving at a speed of 2.2m/s.