All categories

4 years ago

A particle with a mass of 6.67x10^-27 kg has a de Broglie wavelength of 7.22 pm. What is the particle's speed?

Physics

1 answer:

Anastaziya [24]4 years ago

4 0

Answer:

The speed of the particle is 13767.35 m/s.

Explanation:

given the mass m = 6.67×10^-27 kg of particle and moving with a speed v. the momentum of the particle is given by P = m×v and the planck constant h = 6.63×10^-34 m^2×kg/s. the wavelength is λ = 7.22 pm ≈7.22×10^-12 m

The de Broglie wavelength is given by:

λ = h/P

λ = h/(m×v)

v = h/λ×m

= (6.63×10^-34)/[(7.22×10^-12)×(6.67×10^-27)]

= 13767.35 m/s

Therefore, the speed of the particle is 13767.35 m/s.

You might be interested in

A mobile phone is charged by connecting the phone to a mobile charger that we plug into the socket, the mobile charger contains

Feliz [49]

Because you’re using electricity

3 0

4 years ago

Read 2 more answers

Who came up with the theory of relativity?

liberstina [14]

Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels

5 0

4 years ago

Physics laws of motion

expeople1 [14]

The acceleration is $0.095 m/s^2$

Explanation:

We can solve the problem by applying Newton's second law of motion: in fact, the net force acting on an object is equal to the product between the mass of the object and its acceleration. Therefore we can write:

$\sum F = ma$

where:

$\sum F$ is the resultant force acting on the object

m is its mass

a is its acceleration

In this problem, we have the following forces acting on the system:

$F_1 = 2500 N$ (forward)

$F_2 = -2400 N$ (backward)

So, Newton's second law can be rewritten as:

$F_1 -F_2 = ma$

where:

m = 1050 kg is the mass of all the students

Solving the formula for a, we find the acceleration of the system:

$a=\frac{F_1-F_2}{m}=\frac{2500+(-2400)}{1050}=0.095 m/s^2$

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

8 0

3 years ago

Explain the purpose of a geologic time scale

son4ous [18]

Geologic time scales are essential tools for geologists and biologists alike because they help show the history of the entire world in terms of relationships between different plate movements.

7 0

3 years ago

Read 2 more answers

The weight y of a fiddler crab is directly proportional to the 1.25 power of the weight x of its claws. A crab with a body weigh

frez [133]

Answer:

The weight of body is 1.3040 gram.

Explanation:

Given that,

The weight y of a fiddler crab is directly proportional to the 1.25 power of the weight x of its claws.

Suppose a crab with a body weight of 1.8 gram has claws weighing 1.1 gram.

Estimate the weight of a fiddler crab with claws weighing 0.85 gram.