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3 years ago

Anions are formed by _____.

Physics

2 answers:

valina [46]3 years ago

8 0

An anion is formed by the gain of one or more electrons to the atom.

vampirchik [111]3 years ago

5 0

Answer:

Gaining electrons

Explanation:

Anions are negatively charged ions.

When an atom gains some electrons then anions are formed.

As electrons are negatively charged so anions are also negatively charged ions.

Anions are attracted by the cathode which is positively charged electrode.

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What is the tangential velocity of a record player which makes 11 revolutions in 20 seconds?

slava [35]

Answer:

The tangential velocity of a rotating object is:

v = r*w

where r is the radius, and w is the angular velocity.

w = 2*pi*f

where f is the frequency.

We know that the record plater does 11 revolutions in 20 seconds, then it does:

11 rev/20s = 0.55 rev/s = f

then we have:

w = 2*pi*0.55 s^-1 = 2*3.14*0.55 s^-1 = 3.454 s^-1

The radius of a record player is really variable, it is around 10 inches, so i will use r = 10in, which is the rotating part of the record player.

then the tangential velocity is:

v = 10in*3.454 s^-1 = 34.54 in/s

7 0

2 years ago

What is an example of a invertebrate that doesn’t have an exoskeleton?

Tatiana [17]

Invertebrate means those organism which doesnot have backbone in their body .Some of the examples are:

1.Spider

2.earthworm

3.Starfish

4.Sea urchins.

hope this will help u a lot....

5 0

3 years ago

Read 2 more answers

An object in static equilibrium has a coefficient of static friction as 0.110. If the normal force acting on the object is 95.0

igomit [66]

Answer:

mass = 9.7 kg

Explanation:

As we know that when object is at rest on the ground of flat base then we will have

$N - mg = 0$

so from here

$N = mg$

now we have

N = 95 Newton

now from above equation we will have

$95 = m\times g$

$95 = m\times 9.8$

$m = 9.7 kg$

7 0

3 years ago

Here is more points drip students - drip king

levacccp [35]

Answer
Thanks
Explanation

4 0

2 years ago

Read 2 more answers

1 Point

Margarita [4]

Answer: C

Combustion

Explanation:

Oxygen support combustion in a chemical reaction. Oxygen support burning.

In the absence of oxygen, combustion reaction can never take place. And when the supply of oxygen is being cut off, combustion reaction will automatically stop.

The correct option is C which is combustion

7 0

3 years ago