How much force is needed to make a 12 kg object accelerate at 3 m/s

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do

Astudent wants to compare the amounts of co2 given off by yeast provided with different amounts of sugar. the student places a balloon over each container to catch the released co2. which observation is a qualitative observation the student can make?

Ascientist conducted an investigation about the effects of diet on disease resistance in rats and made surprising observations. the mice with a genetic ear mutation seemed to show similar patterns of resistance compared to mice with normal ears. based on this information, what will most likely occur? a. she will perform a second investigation on the role of certain genes in disease resistance. b. she will revise her hypothesis to pertain to mutations rather than diet, and update her data accordingly. c. she will use this information to determine that her original question was nonscientific, so she will revise it. d. she will determine that her hypothesis was invalid because resistance must be genetic.