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Tahmid Knox
2020-10-20
Answered

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odgovoreh

Answered 2020-10-21
Author has **107** answers

=4y

asked 2021-05-13

A movie stuntman (mass 80.0kg) stands on a window ledge 5.0 mabove the floor. Grabbing a rope attached to a chandelier, heswings down to grapple with the movie's villian (mass 70.0 kg), whois standing directly under the chandelier.(assume that thestuntman's center of mass moves downward 5.0 m. He releasesthe rope just as he reaches the villian).

a) with what speed do the entwined foes start to slide acrossthe floor?

b) if the coefficient of kinetic friction of their bodies withthe floor is 0.250, how far do they slide?

asked 2020-10-18

Find a least squares solution of Ax=b by constructing and solving the normal equations.

$A=\left[\begin{array}{cc}3& 1\\ 1& 1\\ 1& 4\end{array}\right],b\left[\begin{array}{c}1\\ 1\\ 1\end{array}\right]$

$\stackrel{\u2015}{x}=$ ?

asked 2021-05-05

Determine which type of function-linear, quadratic, or exponential-would be best for modeling each situation below. You do not need to write an equation for the situation. a. Bailey is growing bacteria on a petri dish for science class. The population of bacteria doubles every 20 minutes, so the initial number of bacteria is 1000, then 2000, then 4000, then 8000, etc. b. Avery is working on her math homework. She finished nine problems in class. She knows that, on average, she can do three problems in five minutes. c. Keiton loves catapults. He is building a small catapult that will launch an apple into the air and over the fence into his friend 's backyard.

asked 2022-01-17

Let

$f\left(z\right)=\frac{{e}^{z}}{{z}^{5}}$ and C be the circle $\left|z\right|=10$ in the counter-clockwise direction. What is $\frac{1}{2\pi i}{\int}_{C}f\left(z\right)dz?$

asked 2022-02-03

asked 2021-12-04

Solve:

${(-5)}^{2}-2\times (-9)+6$

asked 2021-10-01

Solve the equation.

$\frac{5}{2x+3}+\frac{4}{2x-3}=\frac{14x+3}{4{x}^{2}-9}$