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qwelly [4]
3 years ago
12

Explain how magnets have an attractive force and repulsive force

Physics
1 answer:
shusha [124]3 years ago
7 0
The force between two parallel wires carrying currents in the same direction is attractive. It is repulsive if the currents are in opposite directions.
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apple newest ipad pro has a storage option of up to 128gb (gigabytes). how many bytes of storage will it have? use a conversion
vovikov84 [41]

Explanation:

Storage offered by iPad pro = 128 gb

1 gigabyte = 1000,000,000 bytes

1 gb = 1\times 10^{9} bytes

128 gb=128\times 10^9 bytes=128\times 10^9 bytes

Standard form = 128,000,000,000 bytes of storage

Scientific notation = 1.28\times 10^{11} \text{bytes of storage}


8 0
3 years ago
A small metal sphere has a mass of 0.19 gg and a charge of -23.0 nCnC. It is 10.0 cmcm directly above an identical sphere that h
RoseWind [281]

Answer:

  a = -7.29 m / s²

Explanation:

For this exercise we must use Newton's second law,

          F -W = m a

Force is electrical force

         F = k q₁ q₂ / r²

         k q₁ q₂ / r² -mg = m a

indicate that the charge of the two spheres is equal

         q₁ = q₂ = q

         a = (k q² / r² - m g) / m

         a = k q² / m r² - g

Let's reduce the magnitudes to the SI system

        m = 0.19 g (1kg / 1000 g) = 1.9 10⁻⁴ kg

        q1 = q2 = q = -23.0 nC (1C / 10⁹ nC) = -23.0 10⁻⁹ C

        r = 10.0 cm (1m / 100cm) = 0.1000 m

let's calculate

        a = 9 10⁹ (23.0 10⁻⁹)² / (0.1000² 1.9 10⁻⁴) - 9.8

        a = -7.29 m / s²

The negative sign indicates that the direction of this acceleration is downward

6 0
3 years ago
7 2. Name the independent variable: 3. Name the dependent variable:​
charle [14.2K]

Answer:

independent variable is found on the x axis while dependent variable is found on the y axis

5 0
2 years ago
All of the following elements produce magnetic fields except for
Bogdan [553]
The correct answer should be D. copper

Nickel, cobalt, and iron, produce magnetic fields when electrified while copper does not.
3 0
3 years ago
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A large heavy truck smashes into a brick wall totally crumpling the front end. what is the conclusion of this description
Oduvanchick [21]
The person driving the truck was killed
the wall was destroyed
8 0
3 years ago
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