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
AVprozaik [17]
2 years ago
10

What does it mean if an object is electrically uncharged?

Physics
1 answer:
larisa86 [58]2 years ago
5 0
The object has been golaced in water
You might be interested in
What does a calorimeter measure?
DiKsa [7]
A calorimeter measures the amount of heat in a chemical reaction. So the answer would be C, specific heat.
8 0
2 years ago
Lloyd is standing on a scaffolding 12 meters above the ground to clean the windows of a tall building. His bucket, which has a m
Sever21 [200]

Answer:

U₂ = 20 J

KE₂ = 40 J

v= 12.64 m/s

Explanation:  

Given that

H= 12 m

m = 0.5 kg

h= 4 m

The potential energy at position 1

U₁ = m g H

U₁ = 0.5 x 10 x 12        ( take g= 10 m/s²)

U₁ = 60 J

The potential energy at position 2

U₂ = m g h

U ₂= 0.5 x 10 x 4        ( take g= 10 m/s²)

U₂ = 20 J

The kinetic energy at position 1

KE= 0

The kinetic energy at position 2

KE= 1/2 m V²

From energy conservation

U₁+KE₁=U₂+KE₂

By putting the values

60 - 20 = KE₂

KE₂ = 40 J

lets take final velocity is v m/s

KE₂= 1/2 m v²

By putting the values

40 = 1/2 x 0.5 x v²

160 = v²

v= 12.64 m/s

3 0
2 years ago
Read 2 more answers
The total potential and kinetic energy of all the microscopic particles in an object make up its
Gala2k [10]
It makes up B. thermal energy
8 0
3 years ago
A substance that contains only one kind of matter is known as a(n)
Anna35 [415]
An element would be the type of substance that only contains one kind of matter.
3 0
3 years ago
I have multiple questions!
UNO [17]

I'm not sure about the rest but for question 2:

A theory is an attempt to come up with a big picture of all we know so far. It also drives future research as people do experiments to see if what the theory predicts actually happens. When experiments don’t support the theory, you have to change the theory and try again. That’s how science works. We come up with a “best guess” (theory), and then do research to test it’s accuracy. As we discover contradictions, we adjust the theory to take those into account, and then start testing the validity of the new theory.

3 0
3 years ago
Other questions:
  • The vector quantity that defines the distance and direction between two positions. It is a change in your position.
    15·1 answer
  • How far did a frog jump if he travels at a rate of 2.1 m/s for 10 seconds?
    13·1 answer
  • Electromagnetic waves can behave like particles
    10·1 answer
  • Calculate the force of a particle with a net charge of 170 coulombs traveling at a speed of 135 meters/second perpendicular to t
    6·2 answers
  • Explain how columns can be used and set up to increase the effectiveness of business documents.
    14·1 answer
  • A cubical Gaussian surface surrounds two positive charges, each has a charge q 1 1 = + 3.90 × 10 − 12 3.90×10−12 C, and three ne
    14·1 answer
  • SCALCET8 3.9.018.MI. A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the
    14·1 answer
  • An ice skater is moving in a circle at a constant speed. Which of the following best explains the forces acting on the ice skate
    10·1 answer
  • What is the relationship between the perimeter and the side length of anequilateral triangle ?
    14·1 answer
  • This is an image of a satellite traveling around Earth. Explain what are the two forces that are keeping the satelite around Ear
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!