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pentagon [3]
3 years ago
13

What is magnetic poles always come in pair

Physics
2 answers:
ahrayia [7]3 years ago
8 0
Because it just does my guy
notsponge [240]3 years ago
3 0
Like poles repel and unlike poles attract. Magnetic poles always occur in pairs of north and south—it is not possible to isolate north and south poles.
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Among oil field buddies, Conrad was known as a cheerfully profane, hard drinker who was seldom averse to a barroom scrap. But, a
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Conrad’s physician has determined that the damaged that causes his change of behavior is the amygdala. The amygdala is the gray matter of the cerebral hemisphere in which is responsible for making an individual have emotions for it is the emotional center. Thus, it makes Conrad changed because this could have been damaged, making his behavior to change.

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4 years ago
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A mass of 2000 kg is raised 5.0 m in 10 seconds. What is the kinetic energy of the mass at this height?
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Answer:

0 J

Explanation:

The mass is not moving, therefore the kinetic energy is 0.

(I had this same question and the answer is 0)

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The results of a dart game were precise but not accurate. The accepted value of the game was the center of the dartboard. Which
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The darts hit very different areas of the board.

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A projectile is fired with an initial speed of 150 m/s and angle of elevation 60°. (Recall g ≈ 9.8 m/s2. Round your answers to t
natka813 [3]

Answer:

1988 m

Explanation:

Range of a projectile

R = U²sin2∅/g...................... Equation 1

Where R = Range, U = Initial velocity, g = acceleration due to gravity, ∅ = Angle of projection.

Given: U = 150 m/s, ∅ = 60°

Constant: g = 9.8 m/s².

Substitute these values into equation 1

R = 150²(sin60°)/9.8

R = 22500(0.866)/9.8

R = 1988 m

Hence the Range of the projectile is 1988 m

4 0
3 years ago
An arrow is shot parallel to horizontal from a height of 1.4 meters. It has a velocity of 49 m/s.
Mkey [24]

The time taken for the arrow to hit the ground is 0.53 s.

The horizontal distance traveled by the arrow is 25.97 m.

The given parameters:

  • Initial horizontal velocity, v_x = 49 m/s
  • Initial vertical velocity, v_y = 0

<h3>What is time of motion?</h3>
  • This is the time taken for a projectile to land on the plane of projection.

The time of motion is calculated as follows;

h = v_yt + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2\times 1.4}{9.8} }\\\\t = 0.53 \ s

The horizontal distance traveled by the arrow is calculated as follows;

X = v_x t\\\\X = (49\ m/s) \times (0.53 \ s)\\\\X = 25.97 \ m

Learn more about time of motion here: brainly.com/question/2364404

5 0
2 years ago
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