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3 years ago

Explain why pots and pans are made of metal but the handles are made of plastic

Physics

2 answers:

lianna [129]3 years ago

6 0

Answer:

because the stove is hot and it's made out of metal so if they made the handles metal you could not even have use pots , they put plastic handles because they don't want us to get burned

Kisachek [45]3 years ago

4 0

Answer:

The handels are plastic because plastic is not a conductor of heat. This way, the plastic prevents u from getting burnt/hurt.

Explanation:

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Answer:

t = 2.58*10^-6 s

Explanation:

For a nonconducting sphere you have that the value of the electric field, depends of the region:

$rR:\\\\E=k\frac{Q}{r^2}$

k: Coulomb's constant = 8.98*10^9 Nm^2/C^2

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$F=m_pa\\\\qE=m_pa\\\\k\frac{qQ}{r^2}=m_pa\\\\a=k\frac{qQ}{m_pr^2}$

Due to the proton is just outside the surface you can use r=R and calculate the acceleration. Also, you take into account the charge density of the sphere in order to compute the total charge:

$Q=\rho V=(5.5*10^{-6}C/m^3)(\frac{4}{3}\pi(0.05m)^3)=2.87*10^{-9}C\\\\a=(8.98*10^9Nm^2/C^2)\frac{(1.6*10^{-19}C)(2.87*10^{-9}C)}{(1.67*10^{-27}kg)(0.05m)^2}=9.87*10^{11}\frac{m}{s^2}$

with this values of a you can use the following formula:

$a=\frac{v-v_o}{t}\\\\t=\frac{v-v_o}{a}=\frac{2550*10^3m/s-0m/s}{9.87*10^{11}m/s^2}=2.58*10^{-6}s$

hence, the time that the proton takes to reach a speed of 2550km is 2.58*10^-6 s

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Explain why pots and pans are made of metal but the handles are made of plastic​

Explain why pots and pans are made of metal but the handles are made of plastic