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
DiKsa [7]
3 years ago
6

41. Electric and magnetic forces can both make certain objects move. For example, a positively charged particle will repel anoth

er positively charged particle. Which of these is the best way for a student to demonstrate the same principle using magnets?
Physics
1 answer:
notsponge [240]3 years ago
8 0

Answer:

Place the north pole of a magnet next to the north pole of another magnet.

Explanation:

Looking at the comments, we can see that the options are:

Place the south pole of a magnet next to the north pole of another magnet.

Place the north pole of a magnet next to the north pole of another magnet.

First, we know that a positively charged particle will repel another positively charged particle.

The same thing happens for magnetic forces (usually we define a magnetic flow from the south pole to the north pole, so we can define the south pole as the "positive" and the north pole as the "negative", but this is only notation and do not really matter), a south pole of a magnet will repel another south pole of a magnet (and the same happens for the north poles)

Then the correct option is:

Place the north pole of a magnet next to the north pole of another magnet.

You might be interested in
Give an example for each of the following, where the force:
max2010maxim [7]

Explanation:

  • A cricket player hitting the ball from opposite direction.
  • A footballer kicking ball with more force.
  • Heating of a plastic bottle.
  • Applying brake of a car.
  • rolling a stopped marble on a table.

7 0
3 years ago
Read 2 more answers
What are the recent developments in gene therapy?
vredina [299]
Stanford researchers are poised to use stem cells and gene therapy to ameliorate a wide swath of diseases, from common diagnoses such as diabetes and cancer to rare diseases of the brain, blood, skin, immune system and other organs
4 0
3 years ago
Bearing in mind that a sound reflects off an object if the object is larger than the wavelength of the sound, calculate the wave
grandymaker [24]

Answer:

mucilage can detect objects the size of millimeters, whereas humans can only detect objects larger than centimeters

Explanation:

The human ear can detect sound in the range of 20 to 20000hz, we are asked to find the mid-range wavelength of the ear at f = 10000 Hz

let's use the relationship between wave speed, wavelength and frequency

           v = λ f

           λ= v / f

           λ = 343/10000

           λ = 3.43 10⁻² m

the sound range of a bat is between 25 10³ Hz and 100 10³ Hz, they also ask for the wavelength in the middle range

         

          f = (100 10³ + 25 10³) / 2

          f = 62.5 10³ Hz

          λ = 343 / 62.5 10³

          λ = 5.5 10⁻³ m

Therefore the size of the object that a bat can detect is much smaller than the size that a human can detect, therefore the bat is capable of detecting insects, but humans.

The mucilage can detect objects the size of millimeters, whereas humans can only detect objects larger than centimeters

4 0
3 years ago
A lens of focal length 10.0 cm
fgiga [73]

Answer:

30cm

Explanation:

7 0
3 years ago
Inside the wall of a house, an L-shaped section of hot-water pipe consists of three parts: a straight, horizontal piece 28.0 cm
goblinko [34]

Answer:

The magnitude and direction are

7.638×10-4m

80.01°

Explanation:

We know that the coefficient of linear expansion for copper = 16.6×10^-6 m/m-C

ΔT = 40.2 - 18.0 = 28.5 C°

The expansion of horizontal pipe length can be calculated as

= (0.28)(16.6×10^-6)(28.5) = 13247×10^-8

= 0.0001325 m

The expansion of vertical pipe length = (1.28)(16.6×10^-6)(28.5) = 60557×10^-8 = 0.000752229 m

horizontal displacement = 0.1325 mm

= 1.356×10^-4m

vertical displacement = 0.75223mm

=7.5223×10-4m

size of total displacement can be calculated as

√(x²+y²)

Where x and y are vertical and horizontal displacement respectively

= √(0.1325)²+(0.75223)² =

= 0.7638 mm

= 7.638×10-4m

Angle below horizontal = arctan Θ

= 0.75223/0.1325

=5.6772

= arctan (5.6772)

= 80.01°

Therefore, the the magnitude and direction of the displacement of the pipe elbow when the water flow is turned at (7.638×10-4m) 0.7638 mm and 80.01°

7 0
3 years ago
Other questions:
  • Mass m is fired to the right at a speed of 7.0 m/s where it collides and becomes imbedded in mass M which is hanging from a rope
    9·1 answer
  • When you accelerate and steer at the same time, you are?
    8·2 answers
  • a motorcycle stunt driver rides his motorcycle off a small ledge that is 8.4m high his initial velocity as he rides off the ledg
    6·1 answer
  • How does the scientific process generally begin?
    14·2 answers
  • An object takes 5 seconds to move 2 meters upward. How fast did it go?
    10·1 answer
  • How do plate boundary form?
    7·1 answer
  • 7. Peter found an amazing fact in an amusement park when he tried to ride the Magic Mountain Superman. Powerful magnets accelera
    5·1 answer
  • An Indy 500 race car's velocity increases from 4.0 m/s to +36
    6·1 answer
  • You can find people belonging to each of the three consumer groups you researched in the previous task among actors, sportsperso
    8·1 answer
  • A 0.28 kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.2 m.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!