The helium may be treated as an ideal gas, so that
(p*V)/T =constant
where
p = pressure
V = volume
T = temperature.
Note that
7.5006 x 10⁻³ mm Hg = 1 Pa
1 L = 10⁻³ m³
Given:
At ground level,
p₁ = 752 mm Hg
= (752 mm Hg)/(7.5006 x 10⁻³ mm Hg/Pa)
= 1.0026 x 10⁵ Pa
V₁ = 9.47 x 10⁴ L = (9.47 x 10⁴ L)*(10⁻³ m³/L)
= 94.7 m³
T₁ = 27.8 °C = 27.8 + 273 K
= 300.8 K
At 36 km height,
P₂ = 73 mm Hg = 73/7.5006 x 10⁻³ Pa
= 9.7326 x 10³ Pa
T₂ = 235 K
If the volume at 36 km height is V₂, then
V₂ = (T₂/p₂)*(p₁/T₁)*V₁
= (235/9.7326 x 10³)*(1.0026 x 10⁵/300.8)*94.7
= 762.15 m³
Answer: 762.2 m³
A typical wheel used on a roller coaster is constructed by taking an aluminum hub and bonding a polyurethane tire to the hub's outside diameter. This entire “wheel assembly” is then connected to the axle through a bearing.
Answer:
The acceleration of a car would be: 
m/s²
Explanation:
Given
Initial velocity = 
m/s
Final velocity = 
m/s
Time elapsed = 
s
To determine
We need to determine the acceleration of a car.
We know that acceleration is basically the rate of change in velocity over time.
Thus,
We can determine the acceleration using the formula
where
is the acceleration
is the initial velocity
is the final velocity
is time elapsed
now substituting the values , , and in the formula
m/s²
Therefore, the acceleration of a car would be: m/s²
Answer:
Quick action was in this as a thought of he knew he could die from this
Answer:
If you are standing next to loud music you will feel yourself vibrating because resonance happens. When an object vibrating at or near the resonant frequency of a second object then it causes the second object to vibrate. This phenomenon is called resonance.
Explanation:
Hope this helped! :))
