3 years ago

Is a dinosaur fossil living or nonliving?

Biology

2 answers:

yKpoI14uk [10]3 years ago

6 0

The fossil is the bones of the dinosaur. It is nonliving as the dinosaur is dead.

lozanna [386]3 years ago

3 0

Its a dinosaur so no its dead (non living)

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Two equal forces F have resultant of 1.5F .Find the angle between the forces

Grace [21]

Answer:

Angle between the forces $= 82.82$ degrees

Explanation:

The resultant force value $= 1.5$ times of Force F

$|R| = |F1| = |F2| =|F|$

Where R is the resultant force

$R^2 = A^2 + B^2 + 2AB cos X\\(1.5F)^2 = F^2 + F^2 + 2F^2 cos X\\2.25F^2 = 2F^2 + 2F^2 cos X\\$

Cos X is the angle between the two forces.

On further simplifying the equation we get

$2.25F^2 = 2F^2(1 + cos X)$

$(1 + cos X) = \frac{2.25F^2}{2F^2} \\(1 + cos X) = \frac{2.25}{2} \\(1 + cos X) = 1.125\\cos X = 1.125 - 1\\Cos X = 0.125\\X = Cos^{-1}0.125\\$

$X = 82.82$ degrees

Angle between the forces $= 82.82$ degrees

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Answer:

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