3 years ago

Trying to explain why a cactus needs little water to survive is an example of

Chemistry

1 answer:

zmey [24]3 years ago

6 0

It’s a or b i think it’s b

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Irina18 [472]

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<h2>dead plants and animals </h2>

<h2>,air and water.</h2>

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3 years ago

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aliina [53]

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Carbon 14 decays to Carbon 12 and has a half-life of 5730 years. If a fossil is analysed and it has 5 grams of Carbon 14 and 15

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2 years ago

Estimate your de Broglie wavelength when you are running. (For this problem use h = 10^−34 in SI units and 1 lb is equivalent to

AlekseyPX

Answer:

A. your running speed 1.5 m/s

B. your mass 70 kg

C. your de Broglie wavelength $6.32x10^{-36}$ m

Explanation:

Hello there!

In this case, since the equation for the calculation of the Broglie wavelength is:

$\lambda =\frac{h}{m*v}$

We can assume a running speed of about 1.5 m/s and a mass of 70 kg, so the resulting Broglie wavelength is:

$\lambda =\frac{6.626x10^{-34}kg\frac{m}{s} }{70kg*1.5\frac{m}{s} }\\\\\lambda =6.32x10^-36m$

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3 years ago

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Taya2010 [7]

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chemical change

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