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
bonufazy [111]
3 years ago
5

This is from educake but

Physics
1 answer:
Svetach [21]3 years ago
5 0

k = spring constant of the spring = 15 N/m

x₀ = initial position of the spring = 0.3 m

x = final position of the spring = 0.4 m

Δx = stretch in the spring

stretch in the spring is given as

Δx = x - x₀

Δx = 0.4 - 0.3

Δx = 0.1 m

the spring force balances the weight

hence

F = force by the weight

using equilibrium of force in vertical direction

force by weight = spring force

F = k  Δx

inserting the values

F = 15 x 0.1

F = 1.5 N

the force by weight is also known as force of gravity.

You might be interested in
As keisha runs the generator, which best describes what should happen to the needle that measures electric current? it will move
SOVA2 [1]

The diagram shows a simple electric generator. The needle that measures electric current will move back and forth between a largely positive and a large negative value.

  • What is an electric generator?
  1. An electric generator is physically equivalent to an electric motor. but it converts mechanical energy into electrical energy.
  2. The electrical field generated is dependent on the inclination of the wire with respect to magnetic field lines, and this inclination changes over time,

because of that she will experience a varying electrical field, and thus a varying electric current will be zero.

The maximum positive value will occur when the wire is perpendicular to the magnetic field lines after one-fourth of rotation, and then zero.

Hence option C is correct.

The diagram shows a simple electric generator. The needle that measures electric current will move back and forth between a largely positive and a large negative value.

 

Learn more about electric generator here:

<u>brainly.com/question/12296668</u>

<u />

#SPJ4

6 0
1 year ago
An example of a high explosive is what?
nordsb [41]
The answer is Dynamite.
Explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period. Chemical explosives are of two types; detonating, or high explosives and deflagrating, or low, explosives. Detonating explosives, such as TNT and dynamite, are characterized by extremely rapid decomposition and development of high pressure, whereas deflagrating explosives, such as black and smokeless powders, involve merely fast burning and produce relatively low pressures.
5 0
3 years ago
Read 2 more answers
You have seen magnets sticking to the refrigerator door, or maybe in your science class room. They attract metal items, for exam
DENIUS [597]

Answer:

B) shrinks

Explanation:

The magnetic force is a force exerted between two magnets, or two magnetic materials, or also on an electric charge moving in a magnetic field.

If we talk about magnetic material, the magnetic field they generates can be represented using a dipole: essentially, they have a north pole (where the lines of the field go out) and a south pole (where the lines of the field go in).

Also, the lines spread apart as we move away from the magnet itself. This means that the strength of the field (and so, the intensity of the force) decreases as we move away from the magnet.

Using this description, we can now understand that when we move the paper clip further from the magnet, the force exerted on the clip decreases, as the magnetic field becomes weaker. So, the correct answer is B.

3 0
3 years ago
If the baseball and the plastic ball were moving at the same speed which ball would hit a bat harder
Lerok [7]
A baseball would hit the bat harder. This is because the baseball is a lot heavier and more dense than the plastic ball. The keyword that you're looking for is density. The baseball is dense.
7 0
3 years ago
What is the combined resistance for two resistors with resistances of 10 Ohms and 23.7 Ohms if they are connected in series
Agata [3.3K]

Answer: 33.7Ω

Explanation:

Since there are two resistors connected in series, the total resistance (Rtotal) of the circuit is the sum of each resistance.

i.e Rtotal = R1 + R2

R1 = 10Ω

R2 = 23.7Ω

Hence, Rtotal = 10Ω + 23.7Ω

Rtotal = 33.7Ω

Thus, the combined resistance for two resistors is 33.7Ω

3 0
3 years ago
Other questions:
  • Comic-strip hero superman meets an asteroid in outer space, and hurls it at 850 m/s, as fast as a bullet. the asteroid is three
    11·1 answer
  • Which one is having lesser ressistance. a 60w bulb or a 40w bulb?
    12·1 answer
  • How can you use energy conversation to predict the speed of the marble from the height?
    11·1 answer
  • When you burn natural gas in the laboratory, methane burns. What numbers fill in the blanks to balance this equation? ___CH4 + _
    13·2 answers
  • you arrive in my class 45 seconds after leaving math which is 90 meters away how fast did you travel?
    7·2 answers
  • Two technicians are discussing replacing heater hoses. Technician A says that the replacement hoses should be the same length as
    6·1 answer
  • A reading may appear to be different when viewed with one eye or the other, or when the head is moved from side to side or up an
    13·2 answers
  • Why do the compass needles change direction when the electric current is Flowing
    10·2 answers
  • In an electric motor, the rotating coil of wires wrapped around an iron core is a(n)
    14·1 answer
  • How did the iron filing patterns show attractive forces between magnetic poles?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!