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The relationship between angular velocity of a body and the linear velocity at any radius from the center of rotation is: v = w*r, where v is the linear velocity (e.g. m/s), w is the angular velocity (e.g. rad/s), and r is the radius (e.g. m). The chain is attached to the bike wheel at a smaller radius than at the tire, and the angular velocity is the same for both locations, so v1/r1 = v2/r2. For any case in which r1 is smaller than r2, v1 must be proportionally smaller. Plug in any number for r1 and r2 where the relationship is true (r1 < r2), and it can be shown that v1 (velocity at the chain) would be a fraction of v2 (velocity at the tire). Less

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Considering the chain as a whole, it's moving at the same speed as the bike. With respect to the ground, the links on the top of the chain are moving faster than the bike and the links on the bottom bottom of the chain are moving slower. No need to make it so complicated! Less

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using System; class Program { static void Main() { Console.WriteLine(CompoundInterest(1500, 0.043, 4, 6)); } /// /// CompoundInterest. /// static double CompoundInterest(double principal, double interestRate, int timesPerYear, double years) { // (1 + r/n) double body = 1 + (interestRate / timesPerYear); // nt double exponent = timesPerYear * years; // P(1 + r/n)^nt return principal * Math.Pow(body, exponent); } } Less

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def interest(principle, val, years): for x in range(0,years): principle = principle * (1+val) years = years + 1 return principle Less

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Put the elephant on a boat that doesn't sink with the elephant on, and see how much water is displaced. W_elephant = g * water_density * V_displaced Less

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I suggested submerging the elephant in a pool of water and measuring the displacement of the water, then calculating the weight of the water displaced. The interviewer told me I was close, but I'd forgotten that the density of an elephant isn't equal to the density of water, so my calculations would be off a bit. "Besides," he said, "The elephant hates getting wet. So you can't use a pool either." I never did come up with the "correct" answer, but the interviewer smiled and laughed and told me we could move on to the next question. I think this part was more about learning how you think about solving weird questions, and whether you understand the "first principles" approach Elon likes to use, than it was about just spitting out the correct answer. Less

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- use to point a memory address - use to pass by reference- - in C used to initialize a character string Less

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Just wondering if you still remember?

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May I know, how long you had to wait after on-site interview to know their decision about the offer letter? Less

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In my case, the decision came out fairly quick actually, about a week after the on-site interview. Less

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Would you mind listing some of the questions you had prepared to ask them during the interview. It would helped me alot because I have the first phone interview coming up real soon. thanks Less

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Not a good answer, unless you know they really want to hire you badly

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In these sorts of interviews you really need to drill down and understand what the interviewer is looking for. A good way to simulate a real interview experience is to do a mock with one of the Stripe Integration Engineer experts on Prepfully, rated super strongly on TrustPilot... prepfully.com/practice-interviews Less

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We understand that interviewing is always stressful but regret that you had a negative experience overall. I can state unequivocally that at FDB we only interview candidates when we have an open position and full intent to hire the right person. We host several Web APIs as customer facing products. We also work extensively with a wide variety of other vendors APIs. As such, the technology portion of our interviews often contain generic REST and SOAP questions, as well as questions on specific industry APIs and their implementations, such as FHIR. Questions range from those with simple, non-debatable answers to design level questions that invariably involve opinions and trade-offs that we want to see the candidates speak to and defend. Less