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Schach [20]
3 years ago
12

Please halp Why does a suspended magnet always rest in the North-South direction?

Physics
2 answers:
aliya0001 [1]3 years ago
6 0

Explanation:

<em>because</em><em> </em><em>magnet</em><em> </em><em>attract</em><em> </em><em>opposite</em><em> </em><em>sides</em><em>.</em><em> </em><em>like</em><em> </em><em>north</em><em> </em><em>and</em><em> </em><em>south</em><em>.</em>

Yuki888 [10]3 years ago
5 0

Answer:

Its because the magnet has both north and south pole, so when suspended it turns its south pole towards southern hemisphere and the north pole towards northern hemisphere

Hope it helped u,

pls mark as the brainliest

^_^

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Write a short note on escape velocity.​
andrezito [222]

Answer:

physics, escape velocity is the minimum speed needed for an object to escape from the gravitational influence of a massive body. The escape velocity from Earth is about 11.186 km/s (6.951 mi/s; 40,270 km/h; 25,020 mph)[1] at the surface. ... [2] Speeds higher than escape velocity have a positive speed at infinity.

6 0
4 years ago
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Fiona followed these steps for a scientific investigation: 1. Collect baking soda and vinegar 2. Pour baking soda into a bowl. 3
horrorfan [7]

<u>Answer:</u> The correct statement is combining baking soda and vinegar will cause a chemical change.

<u>Explanation:</u>

A chemical reaction is defined as the reaction in which two or more chemical substances react to form two or more different chemical substances

A new substance (product) is formed in a chemical reaction when the bonds between the reactants are broken so that the new bonds between the products can be formed.

A physical process is defined as the process in which the physical state of matter takes place. Like, in the process of vaporization, a liquid state changes to the gaseous state without changing the composition of species.

When baking soda (Sodium bicarbonate) is reacted with vinegar (acetic acid), it leads to the formation of sodium acetate, water, and carbon dioxide.

A new compound is getting formed in this process which is denoted by the chemical equation:

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Hence, the correct statement is combining baking soda and vinegar will cause a chemical change.

7 0
3 years ago
Use differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 4 cm in diameter if the met
ira [324]

The amount of metal in a closed cylindrical can that is 10 cm high and 4 cm in diameter if the metal on the top and the bottom is 0.1 cm thick and the metal on the sides is 0.05 cm thick is 8.8 cm.

The formula for calculating the volume of a cylinder is given below.

V = πr^2 h

Get the differential of the volume as shown:

dV = V/ h dh + V / r dr

V/ h = πr^2

V/ h  = 2  πr h

Now, the differential becomes

dV =  πr^2dh +  2πrh dr

Given the following parameters i.e. diameter and height

dh = 0.1 + 0.1 = 0.2 cm

dr = 0.05 cm

h = 10 cm

d = 4 cm  

r = 2cm

Substituting the values in the above equation, we get

dV = 3.14(2)^2(0.2)  + 2(3.14)(2)(10)(0.05)

dV = 2.512 + 6.28

dV = 8.792 cm

dV = 8.8 cm

If you need to learn more about diameter click here:

brainly.com/question/16813738

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4 0
1 year ago
If a horse does 4000 J of work over 20 m, how much force does the horse use?
astraxan [27]
In physics, a force is said to do work<span> if, when acting, there is a displacement of the point of application in the direction of the force. It is calculated by the formula W = f x d. Therefore, we calculate the problem above as follows:

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5 0
3 years ago
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CFISD too huh? :D

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