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
Alexandra [31]
3 years ago
14

Based on the trend in valence electrons across periods for main-group

Physics
2 answers:
Andreyy893 years ago
6 0

Answer: 4

Explanation: a p e x

Sergeeva-Olga [200]3 years ago
4 0

Answer: 4

Explanation:

You might be interested in
a ball thrown vertically downwatd stikes a horizontal surface with a speed of 15 meters per seconds if then bounces and reaches
Anna71 [15]

but why was it thrown is the real question

3 0
2 years ago
What is an invasive species plant??
lianna [129]
Japanese Honeysuckle
6 0
3 years ago
An iron wire has length 8.0m and a diameter 0.50mm. The sir has a resistance R.
Rudik [331]
The re<span>sistance of the second wire is 16 R.
where R is the resistance of the first wire.

R = </span>ρ\frac{l}{A}
where l = length of the wire
A = area of the wire
A = \pi r^{2} where, r = \frac{diameter of wire}{2}

Thus, on finding the ratio of resistance of the two wires, we get,

\frac{R1}{R2} =  \frac{l1A2}{l2A1}

here, R1 = R
l1 = 8m
l2 = 2m
A1=π0.25^{2}
A1=π0.50^{2}

we get. R2 = 16R
7 0
3 years ago
A wire has a current density of 6.25 × 10 6 A / m 2 6.25×106 A/m2 . If the cross-sectional area of the wire is 1.79 mm 2 1.79 mm
joja [24]

Answer:17.44A

Explanation: Current density=I/Area

Area is given by 2.79mm^2=2.79×10^-6m^2

Current=I=current density ×Area=6.25×10^6 ×2.79×10^-6=17.44A

3 0
2 years ago
What happens in an electromagnet if the core is partially air and partially iron when it is energized?
Xelga [282]
IT WOULD act like an electromagnet even now
this same thing happens when we make use of solenoids. we have a wire wound around a hollow pipe , and that pipe would have air in it . as there is no natural vaccum here, the air will get ionised.. spreading charges .. around itself..
5 0
3 years ago
Other questions:
  • The proportion of carbon-14 in an organism is useful in figuring out the age of that organism after it dies because...?
    15·1 answer
  • Football player A has a mass of 210 pounds and is running at a rate of 5.0 mi/hr. He collides with player B. Player B has a mass
    8·2 answers
  • Which one is not a derived unit?<br><br>1. Hertz<br>2. mol<br>3. Watt<br>4. Newton​
    5·2 answers
  • An airplane capable of an airspeed of 100 km/hr is 60 km off the coast above the sea. If the wind is blowing from the coast out
    15·1 answer
  • Help asapp!!!!!!!!!!!!!!
    9·1 answer
  • Mount mckinley in Alaska is America’s highest mountain at 20,320 feet. Find it’s height in kilometers. 1mi = 1.609 km= 5280. Ans
    8·1 answer
  • Which two points on the wave shown in the diagram below are in phase with each other?
    14·1 answer
  • Why are there time zones? What is there purpose?
    9·1 answer
  • Forces come in pairs. What are these pairs called?
    7·2 answers
  • A ball with a mass of 2.00 kg is dropped from a height of 10.0 m. 2kg 10 m How long will it take to hit the ground?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!