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3 years ago

12

UGH NO ONE IS HELPING MEEE

1 answer:

Bogdan [553]3 years ago

4 0

Answer:

Because energy is conserved, the kinetic energy of a block at the bottom of a frictionless ramp is equal to the gravitational potential energy of the block at the top of the ramp. This value is proportional to the square of the block’s velocity at the bottom of the ramp. Therefore, the block’s final velocity depends on the height of the ramp but not the steepness

of the ramp

Explanation:

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PLZ HELP IT BEING TIMED!!!!!! PLZ ANSWER!!!!!

Wittaler [7]

Answer:

YIKES. a bit late. Answers include 1, 2, 3

Explanation:

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3 years ago

Plss help me!!!!!!!!

Brums [2.3K]

Answer:

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3 years ago

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The reaction A(B) = 2B(g) has an equilibrium constant of K = 0.045. What is the equilibrium constant for the reaction B(g) =1/2A

Mamont248 [21]

Answer:

The $K_c$ for the reaction $B(g) = \frac{1}{2}A$ will be 4.69.

Explanation:

The given equation is A(B) = 2B(g)

to evaluate equilibrium constant for $B(g) = \frac{1}{2}A$

$K_c=[B]^2[A]$

= 0.045

The reverse will be $2B\leftrightharpoons A$

Then, $K_c = \frac{[A]}{[B]^2}$

= $\frac{1}{0.045}$

= $22m^{-1}$

The equilibrium constant for $B(g) = \frac{1}{2}A$ will be

$K_c = \sqrt{K_c}$

$=\sqrt{22}$

= 4.69

Therefore, $K_c$ for the reaction $B(g) = \frac{1}{2}A$ will be 4.69.

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3 years ago

Two colleagues are measuring the melting point of a substance. They observe two ranges of melting point, at 134-137 °C and 132-1

marissa [1.9K]

Explanation:

impurities affect both melting point and boiling point

in the case of melting point it lowers the melting point

so I guess one of the samples Ie contained impurities

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By the mid-1870s, _____ and his Standard oil company had monopolized

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A is the correct answer

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