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Gnom [1K]
3 years ago
7

A car traveling with an initial velocity of 10 m/s accelerates at a constant rate of 2.2 m/s^2 for 2 seconds. What distance does

the car travel during this process
Physics
2 answers:
mel-nik [20]3 years ago
5 0

2.5 better than the first one more game to go hard but I 46 the bucks

tiny-mole [99]3 years ago
3 0

Answer:

hsiahdjjsdhishshdakyeacs4y9yssig

Explanation:

ntesgs7thsjv6wlubx4euc

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Which is not a property of a pure substance
Ann [662]

air is a mixture and not a pure substance.

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8 0
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The force that keeps two surfaces at rest from sliding over each other is
natka813 [3]
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8 0
3 years ago
A proton is confined to a space 1 fm wide (about the size of an atomic nucleus). What's the minimum uncertainty in its velocity?
Daniel [21]

Answer:

Minimum uncertainty in velocity of a proton,\Delta v\ge 3.15\times 10^7\ m/s      

Explanation:

It is given that,

A proton is confined to a space 1 fm wide, \Delta x=10^{-15}\ m

We need to find the minimum uncertainty in its velocity. We know that the Heisenberg Uncertainty principle gives the uncertainty between position and the momentum such that,

\Delta p.\Delta x\ge \dfrac{h}{4\pi}

Since, p = mv

\Delta (mv).\Delta x\ge \dfrac{h}{4\pi}

m \Delta v.\Delta x\ge \dfrac{h}{4\pi}

\Delta v\ge \dfrac{h}{4\pi m\Delta x}

\Delta v\ge \dfrac{6.63\times 10^{-34}}{4\pi \times 1.67\times 10^{-27}\times 10^{-15}}

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So, the minimum uncertainty in its velocity is greater than 3.15\times 10^7\ m/s. Hence, this is the required solution.

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