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
nignag [31]
3 years ago
13

Using the periodic table, predict the formulas of stable ionic compounds. Select THREE that are correct.

Physics
2 answers:
AleksandrR [38]3 years ago
6 0
The first one,second one and the forth one are correct
Vlad1618 [11]3 years ago
5 0
I’m pretty sure the first 1 bad the fourth 4
You might be interested in
A cruise ship makes its way from one island to another. The ship is in motion compared with which reference point?
jekas [21]

A reference point would be something not on the ship which could be used to calculate distance traveled.

Answer: C.) A lighthouse on a nearby Island

7 0
2 years ago
Read 2 more answers
Which of the following is not an example of a polymer?
Gala2k [10]
Concrete is not a polymer which Nylon, and Kevlar are
8 0
3 years ago
Read 2 more answers
It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 km/h. How far did the train travel
Nadusha1986 [10]

Answer: 420 km

Explanation:

120 per hour, 3.5 hours

120 x 3.5 = 420

6 0
3 years ago
A 2kg Book is sitting on a table.a 10n Force is pulling to the right.a 3n Force is pulling to the left what is the net force act
salantis [7]


The net force = sum of all forces acting on the body



If we take left side as -ve and right side as +ve,
then,

The net force here would be equal to,
10N + (- 3N)
= 7N.


Therefore, a net force of +7N ( + indicates it's moving towards right) is acting on the book of mass 2kg.


4 0
3 years ago
A magic medallion is suspended from a string inside a compartment of Hogwarts Express which is running straight westwards on hor
Serggg [28]

Answer:

a = 1 m/s²  and

Explanation:

The first two parts can be seen in attachment

We use Newton's second law on each axis

Y axis

      Ty - W = 0        

      Ty = w

X axis

     Tx = m a

With trigonometry we find the components of tension

    Sin θ = Ty / T

    Ty = T sin θ

    Cos θ = Tx / T

    Tx = T cos θ

We calculate the acceleration with kinematics

   Vf = Vo + a t

   a = (Vf -Vo) / t

   a = (20 -10) / 10

   a = 1 m/s²

We substitute in Newton's equations

     

  T Sin θ = mg

  T cos θ = ma

We divide the two equations

  Tan θ = g / a

  θ = tan⁻¹ (g / a)

  θ = tan⁻¹ (9.8 / 1)

  θ = 84º

We see that in the expression of the angle the mass does not appear therefore you should not change the angle

4 0
3 years ago
Other questions:
  • A solid disc with a radius of 5.00 m and a mass of 20.0 kg is initially at rests and lies on the plane of the paper. A smaller s
    13·1 answer
  • Most problems addressed by the technological design process have only one solution true/false
    9·2 answers
  • If a truck weighs 18,000 N and it’s tires are inflated to a pressure of 190 kPa how large is the area of the trucks tires that a
    6·1 answer
  • Which of the following can be used as a measure of an object's inertia?
    13·1 answer
  • What are the laws of newton​
    7·2 answers
  • How 2cos theta ×sin theta is =sin2theta
    6·1 answer
  • State which of the three materials would allow the thermometer to measure the
    5·1 answer
  • A type of anchor that is a good choice when jacking or leveling
    9·1 answer
  • Vanessa made a list comparing the differences between the outer coverings in plants and animals, but she made a mistake. Read th
    14·1 answer
  • A plane is flying to Minnesota with a velocity of 277.73 km/h, N. The plane
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!