Answer:
<h2>57,500 J</h2>
Explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
PE = 25 × 10 × 230 = 57,500
We have the final answer as
<h3>57,500 J</h3>
Hope this helps you
1)
E.) microwaves
2)
B.) Gamma rays
3)
E.) space
4)
B.) crest
5)
A.) trough
6)
D.) frequency
7)
C.) wavelength
8) 21/3= 7Hz
9)
True
10)
True
11)
True
There is 0.02538502095915 Moles in 5 grams of gold.
Answer:
40.94 g
Explanation:
Given data:
Mass of NO₂ = ?
Volume = 20.0 L
Pressure = 110.0 Pka
Temperature = 25°C
Solution:
Pressure = 110.0 KPa (110/101 = 1.1 atm)
Temperature = 25°C (25+273 = 298.15 K)
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
n = PV/RT
n = 1.1 atm × 20.0 L / 0.0821 atm.L/ mol.K ×298.15 K
n = 22 / 24.5 /mol
n= 0.89 mol
Mass of NO₂:
Mass = number of moles × molar mass
Mass = 0.89 mol × 46 g/mol
Mass = 40.94 g
