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
Kamila [148]
2 years ago
10

66 POINTS! Which is true about the four atoms shown in figures A, B, C, and D?

Physics
2 answers:
Inessa05 [86]2 years ago
8 0

-- A and B are the same element.

-- C and D are the same element, and a different element than A and B.

This is <em>choice-A</em> .

It all comes down to counting the number of protons in the nucleus of each atom.

Butoxors [25]2 years ago
6 0

Answer:

A

Explanation:

A and B are isotopes of one another but the same element

C and D are isotopes of one another but the same element

However, A and B have a different proton count than C and D, indicating different elements because the proton count is equivalent to the atomic number.

You might be interested in
A proton is released in a uniform electric field, and it experiences an electric force of 5 X 10^-10 N toward the South. What is
Ymorist [56]

Answer:

Electric field on proton

E=3.12\times 10^9\ N/C

Explanation:

Given that

Force,F=5\times 10^{-10}\ N

We know that

Charge on proton

q=1.6\times 10^{-19}\ C

We know that

Force = Electric field x Charge

F= E x q

E=\dfrac{F}{q}\ N/C

E=\dfrac{5\times 10^{-10}}{1.6\times 10^{-19}}\ N/C

E=3.12\times 10^9\ N/C

Electric field on proton

E=3.12\times 10^9\ N/C

4 0
3 years ago
Honeybees can see light in the ________ range of the electromagnetic spectrum. question 8 options:
ELEN [110]
<span>ultraviolet

Have a great day!</span>
8 0
3 years ago
Read 2 more answers
A box is being moved with a velocity (v) by a force P (parallel to v) along a level horizontal floor. The normal force is (Fn),
labwork [276]

Answer:

Force (P) : Positive

Normal Force (Fn) : Zero

Weight (mg) : Zero

Kinetic Frictional Force (fk) : Negative

Explanation:

The work done by a force on an object is given by the following formula:

W = F.d

W = F d Cosθ

where,

W = Work Done

f = Force Applied

d = displacement

θ = Angle between force and displacement

<u>FOR FORCE (P)</u>:

Since, force P is parallel to the motion of the box. Therefore, θ = 0°

Hence,

W = P d Cos 0°

W = P d(1)

W = Pd

<u>Therefore, work done by force (P) is Positive.</u>

<u></u>

<u>FOR NORMAL FORCE (Fn) AND WEIGHT (W)</u>:

Since, normal force and weight are perpendicular to the motion of the box. Therefore, θ = 90°

Hence,

W = Fn d Cos 90°= mg d Cos 90°

W = Fn d(0) = mg d (0)

W = 0

<u>Therefore, work done by Normal Force (Fn) and Weight (mg) is Zero.</u>

<u></u>

<u>FOR KINETIC FRICTIONAL FORCE (fk)</u>:

Since, kinetic frictional force acts in the opposite direction of motion of the box. Therefore, θ = 180°

Hence,

W = fk d Cos 180°

W = fk d(-1)

W = -fk d

<u>Therefore, work done by Kinetic Frictional Force (fk) is Negative.</u>

<u></u>

8 0
3 years ago
Objects have a tendency to resist changing their motion. This property is called: *
Salsk061 [2.6K]

Answer:

The answer your looking for is option 2 - Inertia

3 0
3 years ago
Why do some objects fall faster than others?
monitta

Answer:

Weight and Mass !!!!!!

Explanation:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

3 0
3 years ago
Other questions:
  • What is 2m+n =k for M
    13·1 answer
  • In which situations is gravitational potential energy present? Check all that apply. A person walks up a flight of stairs. A per
    7·2 answers
  • What is the first step in the formation of a protostar?
    6·1 answer
  • According to Newton’s first law of motion, when will an object at rest begin to move?
    12·1 answer
  • In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 43.4
    8·1 answer
  • A voltage amplifier needs a high input resistance and a low output resistance. Select one: True False
    8·1 answer
  • Would water, steam, granite, or lead make the best thermal insulator? A thermal insulator is a substance that requires a lot of
    6·1 answer
  • When a hammer strikes a nail, the nail..
    5·2 answers
  • Using your knowledge of momentum explain why cars are designed to have crumple zones?
    8·1 answer
  • Forces come in pairs. What are these pairs called?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!