3 years ago

Figure 9.27

Physics

1 answer:

liraira [26]3 years ago

3 0

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Explain using physics vocabulary WHY the volume increases as the temperature increases.

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P V = n R T ideal gas equation

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2 years ago

A green light is submerged 2.70 m beneath the surface of a liquid with an index of refraction 1.31. What is the radius of the ci

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The radius is $r = 3.1905 \ m$

Explanation:

From the question we are told that

The distance beneath the liquid is $d = 2.70 \ m$

The refractive index of the liquid is $n_i = 1.31$

Now the critical value is mathematically represented as

$\theta = sin ^{-1} [\frac{1}{n_i} ]$

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You push a box with a force of 80 n. if the net force on the box is 50 n, what is the force on the box due to sliding friction?

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2 years ago

A car in an amusement park ride rolls without friction around a track (Fig. P7.42). The hB car starts from rest at point A at a

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Answer:

$h>\dfrac{5}{2}R$

Explanation:

Given that

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$KE_A+U_A=KE_B+U_B$

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$KE_B=\dfrac{1}{2}mV^2$

$KE_B=\dfrac{1}{2}mgR$

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Without falling off at the top (point B)

$0+mgh>\dfrac{1}{2}mgR+2mgR$

$mg(h-2R)>\dfrac{1}{2}mgR$

$g(h-2R)>\dfrac{1}{2}gR$

$h>\dfrac{5}{2}R$

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3 years ago