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3 years ago

A roller coaster at an amusement park goes from the top of a tall hill to the bottom. during this time, the roller coaster

Physics

1 answer:

Nikolay [14]3 years ago

4 0

There are a couple of things happening while the coaster goes from the top of the hill to the bottom:

The coaster loses gravitational potential energy.
The coaster's loss in potential energy becomes its gain in kinetic energy.
The coaster's gain in kinetic energy causes it to speed up.
Maybe the coaster is also losing some of its newly gained kinetic energy to friction due to contact between the coaster's internal components and air resistance.

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What was the initial velocity of a robot that took 5 m to get to final velocity of 19 m/s at a rate of 3 m/s/s?

Aleks [24]

Answer:

4m/s

v=u+at

19=u+3*5

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3 years ago

Speed with direction is called

Naddika [18.5K]

Velocity
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3 years ago

Shelby travels 6 meters East, 2 meters North, 3 meters West, and then 2 meters South. What is their displacement?

yaroslaw [1]

Answer:

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Explanation:

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3 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

Anettt [7]

Answer:

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

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

substituting values

$\theta = sin ^{-1} [\frac{1}{131} ]$

$\theta = 49.76^o$

Using SOHCAHTOA rule we have that

$tan \theta = \frac{ r}{d}$

=> $r = d * tan \theta$

substituting values

$r = 2.7 * tan (49.76)$

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3 years ago

Molecular motion is a measure of the movement of the molecules in a substance. Molecular motion is substantially different betwe

scZoUnD [109]

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3 years ago

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