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
tekilochka [14]
2 years ago
12

A magnetic compass is placed near an insulated copper wire. When the wire is connected to a battery and a current is created, th

e compass needle moves and changes its position. Which is the best explanation for the production of a force that causes the needle to move?
Physics
1 answer:
lawyer [7]2 years ago
6 0

Explanation:

When the wire is connected to a battery, the compass needle moves and changes its position. This happens because the needle magnetizes the copper wire, thus,  creating a force.

While the current in the wire produces a magnetic field and exerts a force on the needle. The insulation on the wire becomes energized and exerts a force on the needle. Hence, the compass needle moves and changes its position.

You might be interested in
A toy car has 2A of current if the car runs one four <br>1.5V batteries, what is the resistance?​
lesya [120]

Answer:

3 ohm

Explanation:

Resistance = Voltage/Current

= 6.0/2

= <u>3</u><u> </u><u>o</u><u>h</u><u>m</u>

5 0
3 years ago
A small bag of sand is released from an ascending hot-air balloon whose upward constant velocity is v0 = 2.45 m/s. knowing that
lakkis [162]
When you draw an illustration for this problem, you would come up with the same drawing as shown in the picture. As the hot-air balloon travels upwards, there is a slight time when the bag of sand rises up until it reaches the maximum height. Then, it goes back down to the ground. The total time would be t₁ + t₂. The solution is as follows:

H = v₀²/2g = (2.45)²/2(9.81) = 0.306 m
t₁ = H/v₀ = 0.306 m/2.45 m/s = 0.125 s

t₂ = √2(H + 98.8)/g = √2(0.306+ 98.8)/9.81
t₂ = 4.495 s

Total time = 0.125 s + 4.495 s = 4.62 seconds

8 0
3 years ago
The box as shown above is moving at a constant velocity . True or false
STatiana [176]
True because on side is heavier than the other
8 0
3 years ago
Two students are balancing on a 10m seesaw. The seesaw is designed so that each side of the seesaw is 5m long. The student on th
Lapatulllka [165]

Answer:

Option A. 4 m

Explanation:

Please see attached photo for diagram.

In the attached photo, X is the distance from the centre to which the student on the right must sit in order to balance the seesaw.

Clockwise moment = X × 45

Anticlock wise moment = 3 × 60

Clockwise moment = Anticlock wise moment

X × 45 = 3 × 60

X × 45 = 180

Divide both side by 45

X = 180 / 45

X = 4 m

Thus, the student must sit at 4 m from the centre.

4 0
2 years ago
Help its due in 10 minutes lol
Tju [1.3M]
I’d say at 1
Hope that helps :)
5 0
3 years ago
Other questions:
  • What is the advantage of D-step tuning on 2020 Pathfinder’s Xtronic CVT at cruising speed?
    10·1 answer
  • Assuming the carbon cycle is a closed system, which of the following statements is true?
    11·2 answers
  • How many centimeters are there in a length 676 inches?
    14·1 answer
  • Please Help
    13·2 answers
  • What minimum heat is needed to bring 100 g of water at 50 â c to the boiling point and completely boil it away? the specific hea
    15·1 answer
  • A ball is attached to a vertical spring. The ball is initially supported at a height y so that the spring is neither stretched n
    5·1 answer
  • Which would be a common-sense practice in a lab environment?
    7·1 answer
  • How many seconds of space should you keep between you if you're driving a 100 foot truck 30 mph?
    9·1 answer
  • How microwave tower work?​
    10·1 answer
  • If the temperature of the solar surface is 5800 K and Wien's law for the peak wavelength of the spectrum of the Sun, assumed to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!