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Reil [10]
3 years ago
15

If you see a swimmer in distress you should:

Physics
2 answers:
MakcuM [25]3 years ago
6 0

Answer:

if u know how to swim Run for help should be the best option

mestny [16]3 years ago
3 0
Check-call-Care if you are training to be a life guard.
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The lowest possible temperature in outer space is 3.13 K. What is the rms speed of hydrogen molecules at this temperature? (The
Umnica [9.8K]

Answer:

v_{rms} =196.59 m/s

Given:

Temperature, T = 3.13 K

molar mass of molecular hydrogen, m = 2.02 g/mol = 2.02\times 10^{-3}kg/mol

Solution:

To calculate the root mean squarer or rms speed of hydrogen molecule, we use the given formula:

v_{rms} = \sqrt{\frac{3TR}{m}}

where

R = rydberg's constant = 8.314 J/mol-K

Putting the values in the above formula:

v_{rms} = \sqrt{\frac{3\times 3.13\times 8.314}{2.02\times 10^{-3}}}

v_{rms} =196.59 m/s

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A stone is thrown vertically upward with a speed of 18.0 . (a)How fast is it moving when it reaches a height of 11.0 ? (b)How lo
aliina [53]
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in physics lab, a cube slides down a frictionless incline as shown in the figure below, and elastically strikes another cube at
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<span>In the physics lab, a cube slides down a frictionless incline as shown in the figure below, check the image for the complete solution:

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