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
UkoKoshka [18]
3 years ago
5

A balloon will stick to a wooden wall if the balloon is charged

Physics
1 answer:
grigory [225]3 years ago
7 0
<h2>Answer: either way</h2>

The balloon contains neutral charge atoms, that is, it has the same number of electrons (negative charge), protons (positive charge) and neutrons (no charge).

Then, when two objects come into contact, the electrons of one of them can become part of the other.

Thus, by bringing the balloon closer to the wall, the wall, which is also made up of atoms, will reorder its charges in such a way that its electrons or protons become part of the balloon, charging it.

You might be interested in
Match each label to the boundary it describes. convergent boundary new crust forms transform boundary crust submerges into the m
Paraphin [41]

The answers would be:

CONVERGENT boundary - Crust submerges into the mantle

TRANSFORM boundary - neither forms nor submerges

DIVERGENT boundary - new crust forms

If you'd like to know more about the different boundaries, read on:

Convergent boundaries occur when two plates move TOWARDS each other. The event where crust submerges into the mantle is called <em><u>subduction</u></em> and this occurs when an oceanic plate and a continental plate collide. The oceanic plate is more dense and thinner than the continental plate, so it slides under it.

Transform boundaries occur when two plates slide against each other. They move slide side by side, so nothing is formed nor do they go under each other. Although, this type of boundaries create strong earthquakes.

Lastly, divergent boundaries occur when two plates move apart. The separation creates a way for magma to come up. New crust is formed when the magma that seeps out is cooled by its cooler surroundings. This is observed in the mid oceanic ridge.

7 0
3 years ago
Read 2 more answers
If the world pulls down on an apple, what is the reaction force? Explain.
-Dominant- [34]
The Apple pulling up on the world
8 0
3 years ago
Read 2 more answers
A hollow sphere of radius 0.200 m, with rotational inertia I = 0.0484 kg·m2 about a line through its center of mass, rolls witho
d1i1m1o1n [39]

Answer:

Part a)

KE_r = 8 J

Part b)

v = 3.64 m/s

Part c)

KE_f = 12.7 J

Part d)

v = 2.9 m/s

Explanation:

As we know that moment of inertia of hollow sphere is given as

I = \frac{2}{3}mR^2

here we know that

I = 0.0484 kg m^2

R = 0.200 m

now we have

0.0484 = \frac{2}{3}m(0.200)^2

m = 1.815 kg

now we know that total Kinetic energy is given as

KE = \frac{1}{2}mv^2 + \frac{1}{2}I\omega^2

KE = \frac{1}{2}mv^2 + \frac{1}{2}I(\frac{v}{R})^2

20 = \frac{1}{2}(1.815)v^2 + \frac{1}{2}(0.0484)(\frac{v}{0.200})^2

20 = 1.5125 v^2

v = 3.64 m/s

Part a)

Now initial rotational kinetic energy is given as

KE_r = \frac{1}{2}I(\frac{v}{R})^2

KE_r = \frac{1}{2}(0.0484)(\frac{3.64}{0.200})^2

KE_r = 8 J

Part b)

speed of the sphere is given as

v = 3.64 m/s

Part c)

By energy conservation of the rolling sphere we can say

mgh = (KE_i) - KE_f

1.815(9.8)(0.900sin27.1) = 20- KE_f

7.30 = 20 - KE_f

KE_f = 12.7 J

Part d)

Now we know that

\frac{1}{2}mv^2 + \frac{1}{2}I(\frac{v}{r})^2 = 12.7

\frac{1}{2}(1.815) v^2 + \frac{1}{2}(0.0484)(\frac{v}{0.200})^2 = 12.7

1.5125 v^2 = 12.7

v = 2.9 m/s

8 0
3 years ago
Which are characteristics of concave mirrors? Check all that apply.
aalyn [17]

Answer:

the answers are 1 2 and 5!

5 0
4 years ago
A volleyball is hit straight up in
SpyIntel [72]

Answer:

a. 0 m

Explanation:

Given:

v₀ = 7.35 m/s

a = -9.8 m/s²

t = 1.50 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (7.35 m/s) (1.50 s) + ½ (-9.8 m/s²) (1.50 s)²

Δx = 0 m

4 0
3 years ago
Other questions:
  • A baseball player slides into third base with an initial speed of 4.0 m/s. If the coefficient of
    11·2 answers
  • Rapid energy transfer between ____ and ____ energy make roller coasters thrilling
    6·1 answer
  • An object of mass 10.0 kg is released from the top of an inclined plane which makes an angle of inclination of 30.0o with the ho
    13·1 answer
  • To increase power we need to?
    8·2 answers
  • If a 2 kg ball is traveling at a speed of 4 m/s, what is its kinetic energy?
    7·2 answers
  • A 227 kg motorcycle moves with a velocity of 8 m/s. What is its kinetic energy? _______ Joules
    9·1 answer
  • Why is it that I feel alone
    11·2 answers
  • What are three properties of electromagnetic waves?
    11·2 answers
  • Based on Kepler's work, which best describes the orbit If a planet around the Sun?
    9·1 answer
  • A 0.2 kg baseball is pitched with a velocity of 40 m/s and is then batted to the pitcher with a velocity of 60 m/s. What is the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!