Why are concave mirrors used in headlights? - Socratic
2018年3月15日 · Basically concentrate the beam: To reduce the beam width (to near parallel) so the intensity at a larger distnace from the headlight is higher. Work out the light ray diagram if …
How are concave mirrors used in telescopes? - Socratic
2018年6月8日 · ALL mirrors in telescopes are to collect/concentrate and focus the received light. A combination of concave and convex mirrors and lenses is used to collect a larger area of …
How do you determine the concavity of a quadratic function?
2014年9月21日 · If the second derivative is negative, the function is concave down. Since the second derivative of any quadratic function is just #2a# , the sign of #a# directly correlates with …
How do you determine whether the function y=x^2 is concave up …
2015年10月9日 · y=x^2 is concave up with an interval of (-oo,+oo) A polynomial function is concave up (opens upward) if the coefficient of x^2 is greater than 0. If the coefficient of x^2is …
Analyzing Concavity of a Function - Calculus - Socratic
How do you determine the values of x for which the graph of f is concave up and those on which it is concave down for #f(x) = 6(x^3) - 108(x^2) + 13x - 26#? Is the function concave up or down …
Explain why production possibility curve is concave? - Socratic
2017年4月20日 · Concave ppc shows increasing opportunity cost Increasing opp cost is created when the production factors used within the production process are homogenous or highly job …
Curved Mirrors - Physics - Socratic
There are two types of curved mirrors; concave and convex. A concave mirror, also known as a converging mirror, is a mirror in which the reflective surface bulges away from the light source. …
What is the difference between a convex polygon and a concave …
2015年12月24日 · A convex polygon is such that if you take 2 points inside of it, their segment will still be inside the polygon. For example, a pentagon or a square or a triangle are convex …
On what interval is f concave upward? f (x)=xln (x) - Socratic
2016年10月25日 · Remember that the derivative of a constant is equal to zero. f''(x)=1/x Remember that this question is asking us to look for when the function is concave up, meaning …
If a concave mirror with a focal length of 10.0 cm creates a
2014年4月30日 · +15.0 cm. For this question, we need to use the mirror formula \\frac{1}{f} = 1/d_o + 1/d_i. What the problem gives us is: f = 10.0 cm, and d_i = +30.0 cm. We know that …