Why is carbon said to provide a “backbone” in many molecules?(1 point)

Physics

1 answer:

slega [8]2 years ago

3 0

Answer:

The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.

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One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching this

allsm [11]

Answer:

$\theta_2 \approx 40.5^{\circ}$

Explanation:

<u>Given:</u>

velocity of the ball first and ball second, $v_1=v_2=v\,m.s^{-1}$

angle of projection of the first ball, $\theta_1= 72^{\circ}$

∵The balls should land at the same point,

∴their range of projectile,

$R_1=R_2=R\,m$

As we know for the range of projectile:

$R=\frac{v^2}{g}.sin\,2\theta$

∵ we have equal range in both the cases

$\therefore \frac{v_1^2}{g}.sin\,2\theta_1=\frac{v_2^2}{g}.sin\,2\theta_2$

$\Rightarrow \frac{v^2}{g}.sin\,(2\times 72) =\frac{v^2}{g}.sin\,2\theta_2$

$\Rightarrow sin 144^{\circ}=sin\,2\theta_2$

$2\theta_2=sin^{-1}[sin 144^{\circ}]$

$\theta_2=\frac{1}{2}\times sin^{-1}[sin 144^{\circ}]$

$\theta_2 \approx 40.5^{\circ}$

8 0

2 years ago

Find the change in the force of gravity between two planets when the distance between them is reduced to one-tenth of the origin

Fofino [41]

The equation for gravitational force is provided. If you were to put 1/10 times d (distance) than 1/10 would be squared = 1/100. So the gravitational force would be 100 times more.