3 years ago

A police officer is using her radar to check speeds. She is moving south at 50 mph. You are moving

Physics

1 answer:

Luda [366]3 years ago

8 0

Answer:

the relative speed should be 40mph

Explanation:

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Explanation: agian sorry

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2 years ago

What happenings when multiple forces act on an object

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A Van de Graaff generator is one of the original particle accelerators and can be used to accelerate charged particles like prot

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595391.482946 m/s

$3.21875\times 10^{6}$

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E = Energy = 1.85 keV

I = Current = 5.15 mA

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t = Time taken = 1 second

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Velocity of proton is given by

$v=\sqrt{\dfrac{2E}{m}}\\\Rightarrow v=\sqrt{\dfrac{2\times 1.85\times 10^3\times 1.6\times 10^{-19}}{1.67\times 10^{-27}}}\\\Rightarrow v=595391.482946\ m/s$

The speed of the proton is 595391.482946 m/s

Current is given by

$I=\dfrac{\Delta Q}{t}\\\Rightarrow \Delta Q=It\\\Rightarrow \Delta Q=5.15\times 10^{-3}\times (1\ sec)\\\Rightarrow Q=5.15\times 10^{-3}\ C$

Number of protons is

$n=\dfrac{Q}{e}\\\Rightarrow n=\dfrac{5.15\times 10^{-3}}{1.6\times 10^{-19}}\\\Rightarrow n=3.21875\times 10^{6}\ protons$

The number of protons is $3.21875\times 10^{6}$

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