When preparing a gel for electrophoresis we have to make sure we insert the comb (make wells) closer to the electrode. red (positive) red (negative) black (negative) black (positive) blue (negative)

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.