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
Alexeev081 [22]
4 years ago
12

Wire A carries 4 A into a junction, wire B carries 5 A into the same junction, and another wire is connected to the junction. Wh

at is the current in this last wire?
Physics
1 answer:
nydimaria [60]4 years ago
7 0

Answer:9A

Explanation:

let the last wire be wire C

According to Kirchhoff's rule

the sum of all currents entering a junction must be equal to the sum of all currents leaving a junction

Ic=Ia+Ib

Ic= 4+5

Ic=9A

You might be interested in
The atomic number of an atom is _____
GrogVix [38]
The proton number? number of protons
6 0
4 years ago
Read 2 more answers
Sound is.....<br> A. matter<br> B. Vibration<br> C. potential energy<br> D. electromagnetic energy
Shkiper50 [21]
The answer is C. Potential energy  

(I learned this in class recently) 

3 0
3 years ago
Planet x has a mass of 4x1022 kg and a radius of 6x105 m What lise the grav ritational field strength in the surface of planet X
SCORPION-xisa [38]

Answer:

  g ≈ 7.4 m/s²

Explanation:

The acceleration due to gravity on planet XX is ...

  g = GM/r² = (6.67·10^-11 × 4·10^22)/(6·10^5)^2

  g ≈ 7.4 m/s²

6 0
3 years ago
You used a telescope and other mathematics to discover that Jupiter is 5.20 au from the sun. Use the equation to find its orbita
meriva

Answer:

11.9 years

Explanation:

We can find the orbital period by using Kepler's third law, which states that the ratio between the square of the orbital period and the cube of the average distance of a planet from the Sun is constant for every planet orbiting aroudn the Sun:

\frac{T^2}{r^3}=const.

Using the Earth as reference, we can re-write the law as

\frac{T_e^2}{r_e^2}=\frac{T_j^2}{r_j^3}

where

Te = 1 year is the orbital period of the Earth

re = 1 AU is the average distance of the Earth from the Sun

Tj = ? is the orbital period of Jupiter

rj = 5.20 AU is the average distance of Jupiter from the Sun

Substituting the numbers and re-arranging the equation, we find:

T_j=\sqrt{\frac{T_e^2 r_j^3}{T_j^2}}=\sqrt{\frac{(1 y)^2 (5.2 AU)^3}{(1 AU)^3}}=11.9 y


4 0
3 years ago
Read 2 more answers
Cell with structures labeled A, B, and C
sveticcg [70]
The answer is A. :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • On a summer afternoon, the sand on the beach can get very hot. When you step on the sand in bare feet, you can burn yourself.
    8·2 answers
  • What is a pickel in a nasty way do?
    7·2 answers
  • What allows for the investigation of a variable? Can someone help please.
    5·2 answers
  • Explain why the pressure exerted by a gas does not depend on the type of the gas.
    5·2 answers
  • If Star A is magnitude 1.0 and Star B is magnitude 9.6 , which is brighter and by what factor?
    9·1 answer
  • Two equal charges are separated by 3.7x10^-10m. The force between the charges has a magnitude of 2.37x10^-3 N. What is the magni
    10·1 answer
  • The inside of a race car often looks very different from the inside of a normal car. Race car teams often remove seats and other
    13·1 answer
  • A swimming pool heater has to be able to raise the temperatureof the 40,000 gallons of water in the pool by 10 degress Celsius.H
    10·1 answer
  • A high school physics instructor catches one of his students chewing gum in class. He decides to discipline the student by askin
    8·1 answer
  • The body is subjected to a force of 0,4 N m with a shoulder of 5 cm. What is the magnitude of this force?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!