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Kamila [148]
3 years ago
9

Can someone do it for me?

Physics
1 answer:
gtnhenbr [62]3 years ago
7 0

Good thing your being straight forward XD

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A small cart and one of larger mass collide and rebound off each other. The carts were initially moving with the same speed. Whi
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the collision is elastic as the carts rebound off each other.

by conservation of momentum, the small mass will have a larger change in velocity.

so the ans is The small cart changes its velocity the most.

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A(n) _____ represents the U.S. in a foreign country.
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A 0.3 mm long invertebrate larva moves through 20oC water at 1.0 mm/s. You are creating an enlarged physical model of this larva
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Answer:

Explanation:

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ρvd/mu = constant

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Calculate the vapor pressure for a mist of spherical water droplets of radius 3.70×10−8m surrounded by water vapor at 298 K. The
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Answer:

The vapor pressure for a mist is P= 25.92\ Torr

Explanation:

From the question we are given that

        The radius is  r = 3.70 *10^{-8} m

        The temperature is T  = 298K

       The vapor pressure of water P_o = 25.2\ Torr

      The density of water is  \rho = 998 kg.m^{-3}

      The surface tension of water is \sigma  = 71.99 m N \cdot m^{-1}

Generally the equation of that is mathematically represented as

                            ln (\frac{P}{P_0} )  = \frac{2 \sigma M}{r \rho RT}

 Where  P is the vapor pressure for mist

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      making P the subject in the formula

    P = e^ {\frac{2 \sigma M}{r \rho RT}} * P_0

        = e^{\frac{2 *(0.07199)(0.018)}{(3.70*10^{-8})(998)(8.31)(298)} } * 25.2

        P= 25.92Torr

               

4 0
3 years ago
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