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Vanyuwa [196]
4 years ago
15

only 90% can dothis plz helpme i will give brainliest brainliest brainliest brainliest brainliest brainliest brainliest brainlie

st brainliest brainliest brainliest Why magnetic bodies lose magnetic force? Why a nail gets magnetized when kept close to magnet? Why two pins attracted by bar magnet maintain distance between their ends? Why magnet do not have ,magnetic force in middle?
Physics
2 answers:
stepan [7]4 years ago
8 0

The force exerted by a magnet is called The push or pull of magnetism can act at a distance, which means that the magnet does not have to touch an object to exert a force on it. ... In fact, magnetism is the result of a moving electric charge.Explanation:

Irina-Kira [14]4 years ago
6 0

thanks! i need the brainliest to level up :)

1. Heat causes magnetic bodies to lose their magnetic force. For each material of magnet, there is a Curie temperature, or temperature at which the heat will destroy the polarization of the material, causing it to loses its magnetic properties.

2. In unmagnetized materials the domains are randomly aligned in different directions and cancel each other out. In a magnet, all the domains are oriented in the same direction. In the case of a nail, the domains can be aligned in the same direction causing the nail to become magnetic.

3. because after got attracting they will also got act as magnets since they would also get North and South poles so in the case of same poles they had repulsion.

4. We know that magnetic fields exert forces on moving electrons for example. ... When you are in the middle of the magnet, the metal object is being pulled more or less equally in both directions, and so the result is that the object doesn't really feel a force in either direction, they cancel each other out.

i hope this helps you!! <3

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Some tip to heal up eyes?
Lady bird [3.3K]

Answer:

DO rinse your eye with saline solution or clean water. ...

DO blink. ...

DO pull your upper eyelid over your lower eyelid. ...

DO wear sunglasses. ...

DON'T rub your eye. ...

DON'T touch your eye with anything. ...

DON'T wear your contact lenses. ...

DON'T use redness-relieving eye drops.

8 0
4 years ago
Read 2 more answers
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant v
monitta

Answer:

a

   u =  10.11 \  m/s

b

   x = 44.996 \  m    

Explanation:

From the question we are told that    

        The velocity of the river due east is  v =  1.150i  \ m /s

        The velocity of the boat due north is  v_1 = 10j  \ m/ s

         The width of the river is  d =  300 \  m

Generally the velocity of the boat relative to the shore

           u =  \sqrt{v^2 + v_1^2}

=>        u =  \sqrt{1.50 ^2 + 10^2}

=>        u =  10.11 \  m/s

Generally direction of the boat relative to the shore is mathematically represented as

           tan \theta  =  \frac{v}{v_1}

=>        \theta  = tan^{-1}[ \frac{v}{v_1}]

=>        \theta  = tan^{-1}[ \frac{1.5}{10}]

=>        \theta  = 8.53^o

Generally the distance covered by the boat in the direction of flow of the river before reaching the north shore is mathematically represented as

             x =  d*  tan(\theta )

=>          x =  300 *  tan(8.53)

=>         x = 44.996 \  m          

         

3 0
3 years ago
Use of a buffered temperature probe is the most accurate way to measure actual vaccine temperatures.
Marianna [84]

The most precise method for determining the actual temperature of vaccines is to use a buffered temperature probe.

<h3>What is temperature?</h3>

Temperature directs to the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity.

Temperature is essential in all areas of Science right from Physics to Geology and also it is important in most parts of our everyday life.

The complete question is;

"What type of device should be used for measuring temperatures in a vaccine storage unit?"

A temperature monitoring system is required in every vaccine storage facility.

A buffered temperature probe offers the most precise storage unit temperature information, including a thorough history of how long a unit has been running beyond the advised temperature range.

Hence, the use of a buffered temperature probe is the most accurate way to measure actual vaccine temperatures.

To learn more about the temperature refer to the link;

brainly.com/question/7510619

#SPJ1

7 0
2 years ago
A glass rod is rubbed briefly with silk and the rod becomes able to attract and lift a number of small pieces of paper. If the r
ser-zykov [4K]

Answer:

it will have a stronger attraction force

Explanation:

8 0
3 years ago
Read 2 more answers
(NEED HELP BADLY)
spin [16.1K]

Answer:

The answer to your question is below

Explanation:

Data 1

mass 1 = 250

mass 2 = 250 kg

gravity constant = 6.67 x 10⁻¹¹ Nm²/kg²

distance = 8 m

Formula

F = G\frac{m1m2}{r^{2} }

Substitution

F = 6.67 x 10^{-11} \frac{250 x 250}{8^{2} }

Result

F = 0.000000065 N

Data 2

mass 1 = 1000 kg

mass 2 = 1000 kg

distance = 5 m

Substitution

F = 6.67 x 10^{-11} \frac{1000 x 1000 }{5^{2} }

Result

F = 0.000002667 N      

8 0
4 years ago
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