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
Aleksandr [31]
3 years ago
6

89 POINTS IF YOU ANSWER

Physics
2 answers:
Evgen [1.6K]3 years ago
8 0
I'm pretty sure it's Protons
Annette [7]3 years ago
3 0
The correct answer is protons. if the amount of protons change, it is a different element.
You might be interested in
If the mass of a material is 45 grams and the volume of the material is 11 cm^3, what would the density of the material be?
Stella [2.4K]

The density of the material would be 4.1 g/cm³.

Density is calculated by dividing the mass by the volume.

D=m÷v

D=45 g÷11 cm³

D=4.1 g/cm³

3 0
3 years ago
Read 2 more answers
A train is moving on a flat, continuous track. label all forces acting upon the object
Firdavs [7]
2nd and third laws of energy
6 0
3 years ago
Which substance requires the most heat to melt 1 kg of the substance? A. Copper B. Mercury C. Gold D. Helium
SOVA2 [1]
I would believe it to be C. Gold, but I'm not quite sure
7 0
3 years ago
Which statement best defines an electric field?
stich3 [128]

Answer:

D

Explanation:

3 0
2 years ago
A 1.3-kg model airplane flies in a circular path on the end of a 23-m line. The plane makes
storchak [24]

(a) The plane makes 4.3 revolutions per minute, so it makes a single revolution in

(1 min) / (4.3 rev) ≈ 0.2326 min ≈ 13.95 s ≈ 14 s

(b) The plane completes 1 revolution in about 14 s, so that in this time it travels a distance equal to the circumference of the path:

(2<em>π</em> (23 m)) / (14 s) ≈ 10.3568 m/s ≈ 10 m/s

(c) The plane accelerates toward the center of the path with magnitude

<em>a</em> = (10 m/s)² / (23 m) ≈ 4.6636 m/s² ≈ 4.7 m/s²

(d) By Newton's second law, the tension in the line is

<em>F</em> = (1.3 kg) (4.7 m/s²) ≈ 6.0627 N ≈ 6.1 N

4 0
3 years ago
Other questions:
  • A baseball is moving at a speed of 2.2\,\dfrac{\text{m}}{\text{s}}2.2 s m ​ 2, point, 2, space, start fraction, m, divided by, s
    9·1 answer
  • Questions from chapter 8.rotational of a rigid body
    10·1 answer
  • An object of mass 700700 kg is released from rest 20002000 m above the ground and allowed to fall under the influence of gravity
    9·1 answer
  • A force of attraction that exists between any two objects is _______. (1 point)
    8·1 answer
  • A ball of silly putty hits andsticks to a bowling ball that was initially at rest. After thecollision, the total kinetic energy
    6·1 answer
  • The element oxygen, represented by the symbol O, is classified as
    8·2 answers
  • newton’s second law states that f=m x a (force is mass times acceleration). which example would have the greatest acceleration
    13·1 answer
  • A person is pulled to the right on a sled (total mass of 52.9 kg) across the surface of a frozen pond with a force of 67.7 Newto
    9·1 answer
  • The sleigh is being pulled with a force of 800N and has a mass of 200 Kg.
    6·2 answers
  • A wire 25 m long carries a current of 12 A from west to east. If the magnetic force on the wire due to Earth’s magnetic field is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!