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maksim [4K]
3 years ago
10

Which best explains parallel forces

Physics
1 answer:
earnstyle [38]3 years ago
3 0

Explanation:

-when the parallel force system is a situation in which two forces of equal magnitude act in the same direction within the same plane, -and the parallel forces lie in the same plane and have lines of action that never intersect each other.

HOPE THIS HELP YOU ! ;))))

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What distance does a police car travel if it is going 3.0 m/s for 20 seconds
Vladimir79 [104]

Answer:

60 meters

Explanation:

If you are going 3 meters in a second, and you are traveling for 20 seconds, you have to multiply

3meters/second*20seconds

cross out the seconds and you have

3 meters*20

60 meters

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2 years ago
What does it mean to say that wolves are social creatures
Marizza181 [45]
They interact with one another with their facial expressions and body movements all the time
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Why is a magnet strongest at its poles ??
Softa [21]

Answer:

magnetic fields is stronger at the pulls because opposites attract which is why the pull is stronger.

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Explanation:

8 0
3 years ago
What is the requirement for a core to be used in an electromagnet?
xxMikexx [17]

D. It must be able to be magnetized

Explanation:

The requirement for a core to be used in an electromagnet is that it must be able to be magnetized.

An electromagnet is a type of magnet produced by electricity.

  • They typically run and produce magnetic fields in the vicinity of electrical currents.
  • These magnets are not permanent magnets.
  • When the electrical current is removed, the magnetic property of the substance is lost.
  • The core of an electromagnet is usually made up of a material that can easily be magnetized in the presence of magnetic fields.
  • Some of the materials used are cobalt, iron, nickel.

learn more:

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8 0
3 years ago
At a circus, a human cannonball is shot from a cannon at 15m/s at an angle of 40° above horizontal. She
Citrus2011 [14]

Answer:

a

The height is   H  = 6.74 \  m

b

The horizontal distance is  D  = 23.74 \  m

Explanation:

From the question we are told that

  The speed is  v  =  15 \  m/s

  The angle is  \theta  =  40^o

   The height of the cannon from the ground is  h  =  2 m

  The distance of the net from the ground is k  =  1 m

 

Generally the maximum height she reaches is mathematically represented as  

     H  =  \frac{v^2 sin^2 \theta }{2 *  g }  +  h

=>    H  =  \frac{(15)^2 [sin (40)]^2 }{2 * 9.8}  +  2

=>    H  = 6.74 \  m

Generally from kinematic equation  

    s = ut + \frac{1}{2} at^2

Here s is the displacement which is mathematically represented as

         s  =  [-(h-k)]  

    =>  s =  -(2-1)

    =>  s  = -1 m

There reason why s =  -1 m is because upward motion canceled the downward motion remaining only the distance of the net from the ground which was covered during the first half but not covered during the second half

     a =  -g = -9.8

    u  =  v sin (\theta)

So

    -1 = (vsin 40 )t + \frac{1}{2} * (-9.8) t^2

=>  -4.9t^2 + 9.6418t + 1 = 0

using  quadratic formula to solve the equation we have

    t  =  2.07 \  s

Generally distance covered along the horizontal is  

   D  =  v cos (40) *  2.07

=>   D  =  15 cos (40) *  2.07

=>   D  = 23.74 \  m

7 0
3 years ago
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