Greenstang

That is what is known as a misaligned die (MAD) on the Reverse. The Obverse looks normal.. Is It is not off enough to have any premium.
There is no Doubling on your coin.
Also please do not hold coins in your hand. Lay it on a flat surface to shoot your photos. If that was a valuable coin, your fingerprints would greatly reduce the value.
 

Please start a new posting for each coin. It only causes confusion when there is more than one coin on a post.
Also to answer your question, both sides of the coin will have to be shown. ( This should be done in all cases)

Don't know where you got your info from, but the normal weight for that dime is 2.27g so you are .01g over which is well within spec.

A coin

Glad to see that you are learning Sharran. It is better than just posting every piece of pocket change like some people and hoping that someone hear can find an error on it.
You can’t always tell the difference between zinc and copper but most of the time if you look at the fields (the surface), you will see that on zinc coins it has a more textured appearance and maybe even shows signs of plate bubbling. If you look at a copper coin, unless it has been damaged, you will find that the fields are smoother. The last coin posted is a good example of a zinc coin.
 
 
 
 

Glad to see that you are learning Sharran. It is better than just posting every piece of pocket change like some people and hoping that someone hear can find an error on it.
You can’t always tell the difference between zinc and copper but most of the time if you look at the fields (the surface), you will see that on zinc coins it has a more textured appearance and maybe even shows signs of plate bubbling. If you look at a copper coin, unless it has been damaged, you will find that the fields are smoother. The last coin posted is a good example of a zinc coin.
 
 
 
 

A coin

Right, except the OP's coin is a 1983.The same theory still applies though.

What do I think? I think it has been plated.
Show a photo of the edge to verify.

Welcome to the Forum
Is it incuse or flush with field. Can’t be a shadow as it is pointing the wrong way.

It is just damage. You cannot have only part of a coin double struck, the whole coin would be double struck resulting in everything being doubled.

It’s a die chip, no extra value.

It is a slight MAD (Misaligned Die) . No extra value.

It's an impaired Proof, it has been damaged.

Not an error, it's damage. Looks like it has corroded.

It is a slight MAD (Misaligned Die) . No extra value.

Welcome to the Forum
I always get a little apprehensive when someone says "multiple errors" on a coin. It is hard enough to find one true error let alone multiples.
When posting, please point out the area you think is an error so that we know what you are referring to.
From what I can see, there are no errors on your coin but there is damage like Die Deterioration, Machine Doubling, Plating Bubbles etc.
FYI, there are only a limited number of things that can happen during the striking of a coin to cause an error, but there are many things that can cause damage.
If you want to know what true errors are, refer to this website which illustrates and explains what is classed as an error.
error-ref.com

What you see is a “lil” bit of Machine Doubling.
Nice photography though

The value for the two of them is probably less than a dollar.
Up to you whether you want to hang on to them or not.

The value for the two of them is probably less than a dollar.
Up to you whether you want to hang on to them or not.

Good thinking Roger, look at how much you could save with shipping charges for a bulk submission.

That coin on the scale is not the same coin you showed originally. The first coin showing  is a Small Date, the coin on the scale is a Large Date. Confusing.

Show us the coin on a scale.

Badly damaged, possibly intentionally
There is no possible way that could happen during the striking of the coin.

You didn’t ask a question so I am guessing you are asking about the bubbling on the reverse.
That is caused by heat expanding the air between the plating and the core. It is damage, not an error.
Also should that coin not be copper?