Lifting a weight 10 times is a kind of ISOTONIC contraction. Holding a heavy machine part steady while securing it in place may be categorized as ISOMETRIC contraction. Lifting heavy cans and putting them on a shelf may be called an ISOTONIC contraction. Flexing your leg muscles and holding the flex is an ISOMETRIC contraction. Lifting your heavy book bag several times is good ISOTONIC contraction.
I would say..
B.) One-quarter to one-third.
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Answer:
The execution of King Charles I was so historic because an English king had never been executed before.
Explanation:
I looked up the history of King Charles I