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
Roman55 [17]
2 years ago
8

Electron dot diagrams for four elements are shown. Which element would be found in Group 14?

Physics
1 answer:
Aleonysh [2.5K]2 years ago
7 0

Answer:

A (2)

Explanation:

Ap3x

You might be interested in
Please help answer both of these !! I’m in a rush :(((
Leno4ka [110]

Answer: search it on browser

7 0
2 years ago
Plz answer this question
Lady_Fox [76]

The answer will be pressure.

Pressure is force per unit area.

8 0
2 years ago
An oscillator consists of a block of mass 0.373 kg connected to a spring. When set into oscillation with amplitude 33 cm, the os
aniked [119]

Answer:

(a)  T = 0.412s

(b)  f = 2.42Hz

(c)  w = 15.25 rad/s

(d)  k = 86.75N/m

(e)  vmax = 5.03 m/s

Explanation:

Given information:

m: mass of the block = 0.373kg

A: amplitude of oscillation = 22cm = 0.22m

T: period of oscillation = 0.412s

(a) The period is the time of one complete oscillation = 0.412s

The period is 0.412s

(b) The frequency is calculated by using the following formula:

f=\frac{1}{T}=\frac{1}{0.412s}=2.42Hz

The frequency is 2.42 Hz

(c) The angular frequency is:

\omega=2\pi f=2\pi (2.42Hz)=15.25\frac{rad}{s}

The angular frequency is 15.25 rad/s

(d) The spring constant is calculated by solving the following equation for k:

\omega=\sqrt{\frac{k}{m}}\\\\k=m\omega^2=(0.373kg)(15.25rad/s)^2=86.75\frac{N}{m}

The spring constant is 86.75N/m

(e) The maximum speed is:

v_{max}=\omega A=(15.25rad/s)(0.33m)=5.03\frac{m}{s}

(f) The maximum force applied by the spring if for the maximum elongation, that is, the amplitude:

F=kA=(86.75N/m)(0.2m)=17.35N

The maximum force that the spring exerts on the block is 17.35N

3 0
3 years ago
What is the chemical name of SiF4? sulfur fluoride silicon fluoride sulfur tetrafluoride silicon tetrafluoride
baherus [9]

Answer:

Silicon tetrafluoride

Explanation:

The symbol Si represents the element silicon, as shown in the periodic table.

The are 4 fluorines, so the prefix for fluoride must have tetra-

8 0
2 years ago
How do catalysts speed up reactions<br><br><br><br> please help quickly
MissTica
How do catalysts speed up reactions ?
 

by reducing the amount of energy required for the reaction to occur.  other factors such as <span>catalysts' ability to speed a process are temperature, concentration </span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • in an experiment which the volume of dry sand is measured by the displacement of water, the sand was slightly wet to begin with.
    6·1 answer
  • What is the mechanical advantage of the machine?
    8·2 answers
  • A solid brass cylinder and a solid wood cylinder have the same radius and mass (the wood cylinder is longer). Released together
    13·1 answer
  • A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours and travels 200 km. What was
    13·1 answer
  • The specific heat of aluminum is 900 J/(kg·°C). How much heat does it take to raise 1 kg of aluminum 4°C?
    9·2 answers
  • Turns red lithmus paper blue
    8·1 answer
  • What are the 2 types of electricity
    8·1 answer
  • How much heat is needed to rise the temperature by 10 oc of mass 5kg if substance of specific heat capacity 300j/kg of What is t
    5·1 answer
  • Please Answer the question in the picture ASAP PLEASE
    11·1 answer
  • True or false question please help me out
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!