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dmitriy555 [2]
3 years ago
7

Q2. EXPLAIN THE CONSTRUCTION AND

Physics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

The working of an electric motor is based on the assumption that a conductive current generates a magnetic field around it. Consider the following situation,

Take two bar magnets, and leave a small space between the poles facing each other. Now, take a small conductive wire length and make a loop. Keep this connection between the magnets, so that it is still inside the magnet’s area of influence. Now for the final part. Attach loop ends to battery terminals.

As electricity flows through your simple circuit, you will find that your loop “moves.” The magnet’s magnetic field interferes with that generated by the conductor’s electrical current flow. Because the loop has become a magnet, it will draw one side of it to the magnet’s north pole, and the other to the south pole. That causes the loop to rotate continuously. This is the idea of an electric motor working.

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A comet is a
Juli2301 [7.4K]
The answer is D. Small object made of ice and dust that orbits the Sun and forms a coma as it approaches the Sun.
7 0
3 years ago
A block with mass M is placed on an inclined plane with slope angle q and is connected to a second hanging block with mass m by
tensa zangetsu [6.8K]

Answer:

The mass of the block m is:

m=M(sin(\theta)+\mu_{s}cos(\theta))

Explanation:

Let's analyze the block by parts

For the block M

T-W_{x}-f_{f}=0 (1)

Where:

  • T is the tension
  • W(x) is the component of the weight in the x-direction
  • F(f) is the friction force

T-Mgsin(\theta)-\mu_{s}N=0  

T-Mgsin(\theta)-\mu_{s}Mgcos(\theta)=0  

For the block m

T-W=0

T=mg (2)

Now, let's combines equation (1) and (2):

mg-Mgsin(\theta)-\mu_{s}Mgcos(\theta)=0  

Finally, let's solve it for block m.

mg-Mg(sin(\theta)+\mu_{s}cos(\theta))=0

m=M(sin(\theta)+\mu_{s}cos(\theta))

I hope it helps you!

7 0
3 years ago
When a circuit is arranged in parallel
attashe74 [19]

Answer:

A. There are multiple paths that electrons can take through the circuit, and it is possible for the electron to pass through one circuit component but not another.

Explanation:

Parallel arrangement of components in an electric circuit puts different parts of the circuit on different branches. In a parallel connection, there are multiple paths for the electrons to take, and it is possible for electrons to pass through on circuit component without going through another. This is the reason why If there is a break in one branch of the circuit, electrons can still flow in other branches, and the same reason why one bulb going off in your home does prevent the other components in your home from coming on (your home is wired in a parallel electric circuit).

5 0
3 years ago
A 15.0 g bullet is moving to the right with speed 270 m/s when it hits a target and travels an additional 25.0 cm into the targe
Fantom [35]

Answer:

F=2187\ N

Explanation:

Given:

  • mass of bullet,m=15\ g=0.015\ kg
  • initial velocity of bullet, u=270\ m.s^{-1}
  • displacement of the bullet in the target, s=25\ cm=0.25\ m

Here as given in the question the bullet penetrates the target by the given displacement of the bullet into it. During this process it faces deceleration and hence it comes to rest.

  • so, final velocity of the bullet, v=0\ m.s^{-1}

Now using the equation of motion:

v^2=u^2+2a.s

where:

a= acceleration of the bullet

0^2=270^2+2a\times 0.25

a=145800\ m.s^{-2}

<u>Now the force of resistance offered by the target in stopping it:</u>

F=m.a

F=0.015\times145800

F=2187\ N

5 0
3 years ago
What is an example of density
Taya2010 [7]
Ice floating on water and Ice floats on water because it is less dense than water. Things that are less dense float on top of things that are more dense because molecules in ice are further apart than molecules in water.
5 0
3 years ago
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