osioashy
2022-10-02

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asked 2020-12-30

A majorette in a parade is performing some acrobatic twirlingsof her baton. Assume that the baton is a uniform rod of mass 0.120 kg and length 80.0 cm.

With a skillful move, the majorette changes the rotation ofher baton so that now it is spinning about an axis passing throughits end at the same angular velocity 3.00 rad/s as before. What is the new angularmomentum of the rod?

asked 2022-03-31

${\int}_{0}^{\infty}\frac{\mathrm{cos}\left(xt\right)}{1+{t}^{2}}dt$

I'm supposed to solve this using Laplace Transformations.

asked 2021-10-16

The probability distribution of the random variable X represents the number of hits a baseball player obtained in a game for the 2012 baseball season.

$\begin{array}{|cc|}\hline x& P(x)\\ 0& 0.167\\ 1& 0.3289\\ 2& 0.2801\\ 3& 0.149\\ 4& 0.0382\\ 5& 0.0368\\ \hline\end{array}$

The probability distribution was used along with statistical software to simulate 25 repetitions of the experiment (25 games). The number of hits was recorded. Approximate the mean and standard deviation of the random variable X based on the simulation. The simulation was repeated by performing 50 repetitions of the experiment. Approximate the mean and standard deviation of the random variable. Compare your results to the theoretical mean and standard deviation. What property is being illustrated?

a) Compute the theoretical mean of the random variable X for the given probability distribution.

$\mu =?$

b) Compute the theoretical standard deviation of the random variable X for the given probability distribution.

$\sigma =?$

c) Approximate the mean of the random variable X based on the simulation for 25 games.

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

d) Approximate the standard deviation of the random variable X based on the simulation for 25 games.

$S=?$

asked 2022-08-19

X-1^3=0

asked 2022-04-24

A piston–cylinder device contains 3 ft3 of air at 60 psia and 150°F. Heat is transferred to the air in the amount of 40 Btu as the air expands isothermally. Determine the amount of boundary work done during this process.

asked 2022-05-29

If r is closer to zero x and y are unrelated

asked 2022-09-13

The geyser Old Faithful in Yellowstone National Park alternates periods of eruption, which typically last from 1.5 to 4 minutes, with periods of dormancy, which are considerably longer. The following table presents the durations, in minutes,30 of dormancy periods that occurred during a recent year.Construct a frequency distribution using a class width of 7, and using 55 as the lower class limit for the first class.