Calculus
A rock is thrown vertically upward from the top of a 250 m250\(\text{ m}\) cliff with an initial velocity of 15 m/s15\(\text{ m/s}\)15 m/s. Assume only gravity acts on the rock (g=9.8 m/s2)\(\left\)(g=9.8\(\text{ m/s}\)^2\(\right\)). At what time does the rock reach its maximum height? What is that height?
Given the velocity-time graph of a car moving along a straight road for tt in [0,10][0,10], what is the displacement function for t≥8 t \(\geq\) 8 if the velocity remains constant for t≥8 t \(\geq\) 8 ?
Calculate the midpoint Riemann sum for f(x)=3x−2 f(x) = 3x - 2 on the interval [1,5][1, 5] with n=4 n = 4 subintervals.
What is a definite integral?
Find ddx∫−1x(3t2−2t)dt \(\frac{d}{dx}\) \(\int\)_{-1}^{x} (3t^2 - 2t) \, dt .
Let g′(x) g^\(\prime\)(x) be continuous for all real x x . What is the average value of g′(x)g^\(\prime\)(x) on the interval [2,7] [2, 7] ?
Assume gg,g′,g^{\(\prime\)} are continuous on R \(\mathbb{R}\) . Determine ∫4(g(x))mg′(x)dx\(\int\)4(g(x))^{m}g^{\(\prime\)}(x)\,dx where m≠−1 m \(\neq\) -1 .
Calculate the area in the first quadrant bounded by y=x3 y = \(\frac{x}{3}\) and y=2−∣x∣ y = 2 - |x| .
A fish population in a pond starts at 50 50 at t=0 t = 0 . After 10 10 days, the population is 200 200 . The carrying capacity is 3200 3200 . After how many days will the population reach half the carrying capacity? Round your answer to nearest whole number.
A population of bacteria in a Petri dish is modeled by P′(t)+aP(t)=SP^{\(\prime\)}(t)+aP(t)=S, where P(t) P(t) is the population at time t t (in hours), a a is the death rate constant, and S S is the supply rate. If S=40 S = 40 cells per hour and a=0.2 a = 0.2 per hour, what is the equilibrium population?
Given w′(s)=sww^{\(\prime\)}\(\left\)(s\(\right\))=\(\frac{s}{w}\), and w(0)=5 w(0) = 5 , use Euler's method with Δs=0.25 \(\Delta\) s = 0.25 to approximate w(1) w(1) . The exact solution is w(s)=s2+25 w(s) = \(\sqrt{s^2 + 25}\) . What is the error at s=1 s = 1 ?
A cup of tea is initially at a temperature of 85∘C 85^{\(\circ\)}\(\text{C}\) and cools in a room maintained at 20∘C 20^{\(\circ\)}\(\text{C}\) . If the cooling constant is k=0.03 k = 0.03 min−1\(\text{min}\)^{-1}, after how many minutes will the tea reach 40∘C 40^{\(\circ\)}\(\text{C}\) ? Round your answer to the nearest whole number.
Find the value of 10,000!9,998!\(\frac{10,000!}{9,998!}\) exactly.
Does the series ∑m=0∞2m+56m−1\(\displaystyle{\sum_{m=0}\)^{\(\infty\)}} \(\frac{2^{m+5}\)}{6^{m-1}} converge?