A cylinder shaped jar has a radius of 2 cm and a hight of 6 cm what the volume of the jar

(1 points) Find the wavelength of a proton moving at 1.00% of the speed of light. The mass of a proton is 1.67 \times 10^{-27} ~

Iteru [2.4K]

Answer:

The wavelength of the proton will be $1.33\times 10^{-15}\ m$

Explanation:

Given the speed of the proton is $1.00 \%$ of speed of light.

And the mass of the proton is $1.67 \times 10^{-27}\ kg$ ..

We need to find the wavelength of moving proton.

As we know the speed of the light $c=2.998\times 10^8\ m/s$

So, speed of the proton will be

$1.00 \%(c)=\frac{1}{100}\times (c)=0.01\times 2.98\times 10^8\ m/s$

Now, we will use De Broglie's Equation to find out wavelength..

$\lambda =\frac{h}{mv}$

Where

$\lambda$ is the wavelength

$h$ is the Planck's constant $6.626\times 10^{-34}\ m^2\ kg / s$

$m$ is the mass in kg

$v$ is the speed in m/s

$\lambda=\frac{6.626\times 10^{-34}}{1.67 \times 10^{-27}\times 0.01\times 2.98\times 10^8}\\ \\\lambda=\frac{6.626}{1.67\times 0.01\times 2.98}\times 10^{-15}\\ \\\lambda=133.14\times 10^{-15}\ m\\\lambda=1.33\times 10^{-15}\ m$

So, the wavelength of the proton will be $1.33\times 10^{-15}\ m$

7 0

3 years ago

What is the relative size and composition of the universe, a galaxy, and a solar system?

slava [35]

The solar system is smaller than a galaxy. Galaxies are composed of solar systems. The solar system is composed of planets revolving around a star (such as our sun). To put into perspective, there are about hundreds of billions of stars in our galaxy (the milky way). On the other hand, billions of galaxies make up the universe.

The speed of light is constant which is 299 792 458 m / s. The time is taken for light to reach an object can be used to measure the distance between objects in space. This is done by multiplying the time by the speed of light.

Distance in space is so vast and therefore impractical to use the basic SI units of meters and kilometers we use here on earth. Therefore the use of astronomical units and light years is used. Light years is the distance that light can cover in a year in the vacuum of space, while astronomical units is the distance between solar systems.

6 0

2 years ago

During a 400-m race, a runner crosses the 100 m mark with a velocity of 12 m/s. What would be her final position if she maintain

Cerrena [4.2K]

Answer:

Explanation:

Given that

Total race distance is 400m

Her initial velocity was 0m/s²

At the 100m mark, after she has travelled 100m, her final velocity was v=12m/s²

Using equation of motion

Let determine her constant acceleration

v²=u²+2as

12²=0²+2×a×100

144=0+200a

144=200a

a=144/200

a=0.72m/s²

Then we want to know her position after another 10second

So total time is 10+12=22seconds

Then, using equation of motion

Let determine his postion

S=ut+½at²

S=0•t+½×0.72×22²

S=0+174.24

S=174.24 m

Her position will be 174.24m

7 0

4 years ago

Read 2 more answers

The slope of the distance-time group is called what

asambeis [7]

Answer:

The slope of a distance-time graph indicates the rate of change of distance and it is termed as speed.

pls mark as brainliest

7 0

3 years ago

Explain briefly where the energy come from when a liquid Rises against Gravity in a capillary tube

SSSSS [86.1K]

Answer:

Surface tension

Explanation:

When liquid rises against gravity in a capillary tube, the energy comes from surface tension.

This is because surface tension is the energy that's needed to increase the liquid surface area.

As a result of hydrogen bonding present in Water, it usually has high surface tension which makes it to possess a tough skin that can make it not to break despite high forces applied to it.

The liquid will be in contact with the capillary tube and as such experiences surface tension which in turn makes the capillary tube to experience an upward force that makes the liquid begin to rise up.

The more the liquid keeps rising, the more it gets to the point where the surface tension becomes balanced from the weight of the liquid.

3 0

3 years ago