) Some students investigated the effect of the different concentrations of sugar in four drinks, A, B, C and D, on the movement of water across a partially permeable membrane. The students: • made four bags from artificial partially permeable membrane • put equal volumes of 5% sugar solution in each bag • weighed each bag containing the sugar solution • placed one bag in each of the drinks, A, B, C and D • after 20 minutes removed the bags containing the sugar solution and weighed them again. (i) The bag in drink A got heavier after 20 minutes. Explain why. A contains 0.1% sugar solution.
B contains 4.2% sugar solution.
C contains 6.9% sugar solution.
D contains 10.6% sugar solution.

Which process is involved in growing crops? irrigation transportation recreation condensation

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.