Answer:
C ) 1.70 g/L
Explanation:
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Also,
Moles = mass (m) / Molar mass (M)
Density (d) = Mass (m) / Volume (V)
So, the ideal gas equation can be written as:
PM=dRt
At STP,
Pressure = 1 atm
Temperature = 273.15 K
Molar mass of fluorine gas = 38 g/mol
Applying the equation as:
1 atm × 38 g/mol = d × 0.0821 L.atm/K.mol × 273.15 K
<u>⇒d = 1.70 g/L</u>
X rays have a lower frequency than microwaves would be the scientific statement.
Answer: It's the circulatory system
Explanation:
Answer:
The energy stored in the spring when the bike goes over a bump is 
joules.
Explanation:
Let suppose that spring has a linear behavious, by means of Hooke's Law, definition of Work and Work-Energy Theorem we find that the potential energy stored in the spring (
), measured in joules, is defined by:
(1)
Where:
- Spring constant, measured in newtons per meter.
- Deformation, measured in meters.
If we know that 
and 
, the energy stored by the spring due to compression is:
The energy stored in the spring when the bike goes over a bump is joules.
