Answer:
The answer to your question is Ke = 2240 J
Explanation:
Data
mass of the object = 20 kg
mass of the girl = 50 kg
speed = 8 m/s
Kinetic energy = Ke = ?
Formula
Ke = 1/2 mv²
Process
Kinetic energy is due to the movement of an object.
1.- Calculate the total mass
Total mass = 20 + 50 = 70 kg
2.- Substitution
Ke = 1/2(70)(8)²
3.- Simplification
Ke = 1/2(4480)
4.- Result
Ke = 2240 J
Answer:
c. carbon monoxide
Explanation:
no one bothers to read why anyways so look at the picture
Answer:
Acid - A compound that increases hydrogen ions (H+) when it is dissolved in a solution
pH - A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
Base - A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
Litmus paper - Used to measure the pH of substances by determining their hydrogen ion concentration
The pressure of the CO₂ = 0.995 atm
<h3>Further explanation</h3>
The complete question
<em>A student is doing experiments with CO2(g). Originally, a sample of gas is in a rigid container at 299K and 0.70 atm. The student increases the temperature of the CO2(g) in the container to 425K.</em>
<em>Calculate the pressure of the CO₂ (g) in the container at 425 K.</em>
<em />
<em />
Gay Lussac's Law
When the volume is not changed, the gas pressure is proportional to its absolute temperature
P₁=0.7 atm
T₁=299 K
T₂=425 K
<em />
Ans: Elements in the same period have the same number of electron shells.