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2 years ago

8

Show that the units N/kg can be written using only units of meters (m) and second (s). Is this a unit of mass ,acceleration or f

orce.

1 answer:

nikdorinn [45]2 years ago

3 0

<span>When the difference between two results is larger than the estimates error, the result is</span>

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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

2 years ago

A telescope is used to take two images, one magnified 100x and the other magnified 400x. In which image would you be able to see

lara [203]

We can see the image in most detail that having 400x magnification as compared to 100x.

<h3>What is magnification?</h3>

Magnification is the process in which the size of an object is enlarging but not physical size of something. Those instruments having high magnification power can shows us the image larger and due to which we can see that image clearly.

So we can conclude that we can see the image in most detail that having 400x magnification.

Learn more about telescope here: brainly.com/question/18300677

4 0

1 year ago

You want to buy a jacket that is on sale for $59.95, including tax. If you are paid $10.00 an hour for babysitting, how many hou

mafiozo [28]

Answer:

We need to work 6 hours to get 59.95$.

Explanation:

We need to get 59.95$ and the paid for each hour is 10.00$, hence:

$\frac{10.00$}{h}*x = 59.95$$

$x = \frac{59.95$}{10.00$/h} = 5.995 h = 6 h$

Therefore, we need to work 6 hours to get 59.95$.

I hope it helps you!

4 0

3 years ago

Help with the two questions above please! I will give brainliest. I need urgent help with this!

LekaFEV [45]

The answer to the first is two arrows.
The second picture, normal force goes up.

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2 years ago

The fundamental mode of vibration of a wave is defiened as that which as the lowest ____.

mrs_skeptik [129]

Answer:

Frequency

Explanation:

4 0

3 years ago

Read 2 more answers