Safari Live - Day 337 | National Geographic

An object is moving along a line. The following graph gives the object’s velocity over time. For each point on the graph, is the object speeding up, slowing down, or neither? So pause this video and see if you can figure that out. All right, now let’s do…

Hi everyone, this is Jeremy Shifling of Khan Academy. I’m joined by our amazing leader of professional learning, Megan Patani. Megan has a real treat in store for you today because she’s going to walk you through not the educator experience that you’re us…

[Music] It’s a dog-eat-dog world: winner takes all, survival of the fittest. But is it really? If the biggest and baddest always win, how come there are so many more of them than them? Strength is helpful, but friendliness might actually be the key to evo…

Welcome back to Star Talk! We are featuring my interview with actress Mayim Bialik. She is the neuroscientist on the hit TV series The Big Bang Theory, and I asked her about the portrayal of women scientists. Is it good? Is it bad? Is it working? Let’s ch…

An equilibrium constant has one value for a particular reaction at a certain temperature. For example, for this reaction, we have oxalic acid turning into two H plus ions and the oxalate anion. The equilibrium constant Kc for this reaction is equal to 3.8…

Let g of x equal one over x. Can we use the mean value theorem to say that the equation g prime of x is equal to one half has a solution where negative one is less than x is less than two? If so, write a justification. All right, pause this video and see…