1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SpyIntel [72]
2 years ago
12

Suppose an electron is trapped within a small region and the uncertainty in its position is 24. 0 x 10-15 m. what is the minimum

uncertainty in the electron's momentum?
Physics
1 answer:
sergeinik [125]2 years ago
3 0

The minimum uncertainty in the electron's momentum is

Δp = 2.2822 \times 10 {}^{ - 20} kg/ms

Given:

Uncertainty in position (ΔX)

= 24 \times 10 {}^{ - 15}m

planck's constant (h)

= 6.26 \times 10 {}^{ - 34} js

To find:

uncertainty in momentum (Δp)

Δx.Δph/4π

24 \times 10 {}^{ - 15} .Δp =  \frac{6.26 \times 10 {}^{ - 34} }{4 \times  \frac{22}{7} }

24 \times 10 {}^{ - 15}. Δp =  \frac{6.26 \times 10 {}^{ - 34} \times 7 }{8}

Δp =  \frac{43.82 \times 10 {}^{ - 34} }{8 \times 24 \times 10 {}^{ - 15} }

Δp =  \frac{43.82 \times 10 {}^{ - 34}  \times 10 {}^{ 15} }{192}

Δp =  \frac{4382 \times 10 {}^{ - 21} }{192}

Δp =22.822 \times 10 {}^{ - 21}

Δp = 2.2822  \times 10 {}^{ - 20} kg/ms

learn more about electron's momentum from here: brainly.com/question/28203580

#SPJ4

You might be interested in
An electric oven has a resistance of 201 ohms and a voltage of 220 V. How much current does it draw?
asambeis [7]

1.1 A. An electric oven with a resistance of 201Ω and a voltage of 220V drwa a current of 1.1 A.

The easiest way to solve this problem is using the Ohm's Law I = V/R.

An electric oven has R = 201Ω, and a drop of voltage V = 220v, solve using I = V/R:

I = 220V / 201Ω

I = 1.09 A ≅ 1.1 A

5 0
3 years ago
What does it mean to say that some elements are reactive and form ions easily whereas others do not?
butalik [34]

Answer:

Some elements are reactive because the outermost energy levels of their atoms are only partially filled. Therefore, these atoms can easily gain or lose electrons to form ions. The atoms of nonreactive elements have filled outermost energy levels

Explanation:

hope this answers your ?

4 0
2 years ago
The ability of your joints and muscles to move in their full range of motion is called
Studentka2010 [4]

Answer:

Dynamic flexibility

Explanation:

Dynamic flexibility can be generally defined as the ability of the body muscles and joints to move in full range of motion. High flexibility in these joints and muscles leads to the decreasing pain and injury in different parts of the body.

Proper warm up exercises are needed to be carried out that involves both the combination of controlling movements and stretching of the body, and this directly enhances the dynamic flexibility of the body.

The athletes and sports persons possesses a good dynamic flexibility of their body as they carry our different types of body exercises.

6 0
3 years ago
Problem 4: A uniform flat disk of radius R and mass 2M is pivoted at point P A point mass of 1/2 M is attached to the edge of th
brilliants [131]

From the case we know that:

  1. The moment of inertia Icm of the uniform flat disk witout the point mass is Icm = MR².
  2. The moment of inerta with respect to point P on the disk without the point mass is Ip = 3MR².
  3. The total moment of inertia (of the disk with the point mass with respect to point P) is I total = 5MR².

Please refer to the image below.

We know from the case, that:

m = 2M

r = R

m2 = 1/2M

distance between the center of mass to point P = p = R

Distance of the point mass to point P = d = 2R

We know that the moment of inertia for an uniform flat disk is 1/2mr². Then the moment of inertia for the uniform flat disk is:

Icm = 1/2mr²

Icm = 1/2(2M)(R²)

Icm = MR² ... (i)

Next, we will find the moment of inertia of the disk with respect to point P. We know that point P is positioned at the arc of the disk. Hence:

Ip = Icm + mp²

Ip = MR² + (2M)R²

Ip = 3MR² ... (ii)

Then, the total moment of inertia of the disk with the point mass is:

I total = Ip + I mass

I total = 3MR² + (1/2M)(2R)²

I total = 3MR² + 2MR²

I total = 5MR² ... (iii)

Learn more about Uniform Flat Disk here: brainly.com/question/14595971

#SPJ4

8 0
1 year ago
Help pls, see picture. Will mark Brainliest
Pani-rosa [81]

Answer:

a ) option 2 is correct

b) -ve acceleration for upward motion ,0 acceleration at top point ,+ve acceleration on downward motion ...

Explanation:

mark me as brainliest ❤️

5 0
2 years ago
Read 2 more answers
Other questions:
  • You eat an apple, so what energy transformations will it go through?
    8·2 answers
  • Need help with both questions!
    7·1 answer
  • A charge Q is uniformly distributed along the x axis from x = a to x = b. If Q = 45
    13·1 answer
  • Do cars get better gas mileage with clean air filters? Gas mileage for 10 cars with dirty air filters and clean air filters was
    14·1 answer
  • A box experiencing a gravitational force of 600 N. is being pulled to the right with a force of 250 N. 825 N. frictional force a
    12·1 answer
  • Which of the following areas of the sun is where energy is transferred very slowly, sometimes taking up to 100,000 years, by ele
    15·1 answer
  • Suppose a net force of 7900 N is applied to slide a 950 kg crate across the floor. Compute the resulting acceleration of the cra
    9·1 answer
  • A Projectile attains its maximum height when the angle of projection is?​
    7·1 answer
  • How do mathematical models help us learn about conditions inside the sun?
    5·1 answer
  • Jason while driving on Kukum highway at 70 m.s – 1 seeing the traffic light turn red, he applies the brake and comes to rest in
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!