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3 years ago

Which amusement park ride utilizes periodic motion?

Physics

1 answer:

tatyana61 [14]3 years ago

8 0

Any ride that oscillates back and forth or moves only in a complete circle utilizes periodic motion.

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Where did all the golden carals go?

Kamila [148]

Answer:

Thanos went *snap*

Explanation:

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3 years ago

A scientist who studies teenage behavior was interested in determining if teenagers spend more time playing computer games then

natita [175]

Answer:

greater than 0.10

Explanation:

The null hypothesis is:

$H_{0} = 10.2$

The alternate hypotesis is:

$H_{1} > 10.2$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the statistic, $\mu$ is the mean, $\sigma$ is the standard deviation and n is the size of the sample.

We have that:

$t = 0.45$

We are testing if X is greater than 0.45, so our pvalue is 1 subtracted by the pvalue of z = t = 0.45.

z = 0.45 has a pvalue of 0.6736

1 - 0.6735 = 0.3264

So our pvalue is 0.3264, which is greater than 0.10.

So the correct answer is:

greater than 0.10

7 0

3 years ago

The metal with the highest melting temperature is tungsten which melts at around 3400 K. What is the wavelength of the peak of t

alekssr [168]

Explanation:

It is given that, the metal with the highest melting temperature is tungsten which melts at around 3400 K, T = 3400 K

We need to find the wavelength of the peak of the black body distribution for this temperature. It can be calculated using Wein's displacement law as :

$\lambda\times T=k$

k is the constant, $k=2.89\times 10^{-3}\ m.k$

$\lambda=\dfrac{k}{T}$

$\lambda=\dfrac{2.89\times 10^{-3}\ m.k}{3400\ k}$

$\lambda=8.5\times 10^{-7}\ m$

$\lambda=850\ nm$

The wavelength of infrared is from 700 nm to 1 mm. So, the lies in infrared region of the spectrum. Hence, this is the required solution.

7 0

4 years ago

Compare and contrast angular momentum and linear momentum.

zepelin [54]

Answer:

Linear momentum is a property of objects which are changing their position with respect to a reference point.

Angular momentum is a property of objects which are changing the angle of their position vector with respect to a reference point.

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3 years ago

A dump truck contains a load of soil. Which action will leave the dump truck's

soldier1979 [14.2K]

Answer:

Explanation:

This will not change the weight and therefore not change the inertia

3 0

3 years ago

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