3 years ago

Help with this ASAP it’s due today

Physics

1 answer:

adoni [48]3 years ago

7 0

I didn’t know water has calories

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A 300 N force acts on a 25 kg object. The acceleration of the object is?

storchak [24]

Acceleration is F/M so the answer would be 12m/s^2

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3 years ago

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A photon of wavelength 192 nm strikes an aluminum surface along a line perpendicular to the surface and releases a photoelectron

alex41 [277]

Answer:

$KE=3.529\times10^{−27}\ J$

Explanation:

Given that

Wavelength λ=192 nm

So energy of photon,E

$E=\dfrac{hC}{\lambda }$

Now by putting the values

$h=6.6\times 10^{-34}\ m^2.kg/s$

$C=3\times 10^{8}\ m/s$

$E=\dfrac{6.6\times 10^{-34}\times 3\times 10^{8}}{192\times 10^{-9} }$

$E=1.03\times 10^{-18} J$

We know that

Kinetic energy given as

$KE=\dfrac{P^2}{2m}$

$KE=\dfrac{E^2}{2mC^2}$

$KE=\dfrac{(1.03\times 10^{-18})^2}{2\times 1.67\times 10^{-27}(3\times 10^8)^2}$

$KE=3.529\times10^{−27}\ J$

5 0

3 years ago

WILL NAME BEST ANSWER THE BRAINLIEST (if you answer well)

mylen [45]

The best and most correct answer among the choices provided by the question is third choice. What happened during the set-up was the e<span>xcess protons move from the positive rod to the negative rod.</span> I hope my answer has come to your help. God bless and have a nice day ahead!

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3 years ago

You can make a smoothie in a blender with a power of 400 watts and an efficiency of 85 percent. How much energy is actually bein

valkas [14]

Answer:

total energy is 14.12kj

energy at 85% is 12kJ

Explanation: