Answer:
26.64 m
Explanation:
Given the following :
Acceleration at ocean surface = 0.0800 m/s²
Distance covered if initial speed = 0.700 m/s and accelerates to a speed of 2.18m/s
Using the equation :
v² = u² + 2as
Where ;
v = final velocity ; u = initial velocity ; a = acceleration ; s = distance covered
Therefore,
v² = u² + 2as
2.18² = 0.7² + (2 × 0.08 × s)
4.7524 = 0.49 + 0.16s
4.7524 - 0.49 = 0.16s
4.2624 = 0.16s
s = 4.2624 / 0.16
s = 26.64 m
Answer:
10m
Explanation:
The object distance and image distance is the same from the mirror. so the image is 5m behind the mirror.
5+5=10
Answer:
The weight of the air above is smaller
Explanation:
As altitude increases, the amount of gas molecules in the air decreases. The air becomes less dense than air nearer to sea level. This is what people mean by “thin air”. Thin air exerts less pressure than air at a lower altitude.
Answer:
Temperature of neon gas = 875 K
Explanation:
Using Ideal gas equation as:
PV=nRT
Where,
P is the pressure of the gas
V is the volume of the gas
n is the number of moles
R is the gas constant
T is the temperature
Also,
The ideal gas equation can be written as:
Thus,
As Density and Pressure is constant , We only consider molar mass and Temperature which are directly proportional according to the equation above as:
Data given for He:
Temperature (T₁) = 175 K
Molar mass of He (M₁)= 4 g/mol
For Ne:
Temperature (T₂)= ?
Molar mass of He (M₂)= 20 g/mol
Applying in the equation,
<u>Temperature of neon gas = 875 K</u>
The total energy of the system remains the same.