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3 years ago

7

Cellular respiration is an example of a chemical reaction where energy is released. Which of the following is a reaction where e

nergy is released?
A-Exothermic reaction

B-Endothermic reaction

C-Dissolution reaction

D-Acid-Base reaction

1 answer:

SSSSS [86.1K]3 years ago

6 0

C. Dissolution reaction

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Gravity is an attractive force between two or more objects. The amount of force is directly proportional of the _______ of the o

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Blank 1: mass
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The relationship between the decay constant (λ) and the half-life (t1⁄2) is given by the equation t(1/2) = 0.693/λ. Use the equa

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Explanation:

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2 years ago

Based on the second law of thermodynamics, how would you expect a system to change over time?

deff fn [24]

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3 years ago

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When Woods hits a 0.04593 kg golf ball, the golf ball is usually traveling around 281 kilometers per hour. What average force do

Semenov [28]

Answer:

128.9 N

Explanation:

The force exerted on the golf ball is equal to the rate of change of momentum of the ball, so we can write:

$F=\frac{\Delta p}{\Delta t}$

where

F is the force

$\Delta p$ is the change in momentum

$\Delta t=0.030 s$ is the time interval

The change in momentum can be written as

$\Delta p = m(v-u)$

where

m = 0.04593 kg is the mass of the ball

u = 0 is the initial velocity of the ball

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Substituting into the original equation, we find the force exerted on the golf ball:

$F=\frac{m(v-u)}{\Delta t}=\frac{(0.04593)(78.1-0)}{0.030}=128.9 N$

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