The volcanoes in Iceland generate geothermal energy, heating & help with the making of electricity
Answer:
Average acceleration of the car is 1.167 m/s^2
Explanation:
The speed of car with which it is travelling is 12 m/s
As the driver accelerates the car, the speed reaches 26 m/s
The change in speed in 12 seconds is
26 -12 = 14 m/s
Average acceleration is change in speed divided by time
m/s^2
Answer:
5.4 cm³
Explanation:
Ideal gas law:
PV = nRT
where P is absolute pressure, V is volume, n is number of moles, R is ideal gas constant, and T is absolute temperature.
Since n and R are constant, we can say:
PV / T = constant
At the bottom of the lake, the pressure is:
P = ρgh + Patm
P = (1000 kg/m³) (9.8 m/s²) (40.5 m) + 101,325 Pa
P = 498,225 Pa
And the temperature is:
T = 2.3 + 273.15 K
T = 275.45 K
At the top of the lake, the pressure is:
P = Patm
P = 101,325 Pa
And the temperature is:
T = 28.1 + 273.15 K
T = 301.25 K
Therefore:
PV / T = PV / T
(498225 Pa) (1.00 cm³) / (275.45 K) = (101325 Pa) V / (301.25 K)
V = 5.4 cm³
Answer: e = 3.333% or 33 1/3%
^
repeated
Identify the given information.
Work input (Wi)= 600 K
Work output (Wo) = 200 K
Choose which formula you should use. In this case, you are finding efficiency.
e = (Wo/Wi) x 100%
Substitute and solve.
e = (200 K/600 K) X 100%
e = 0.333 X 100%
e = 33.333% or 33 1/3%
Answer:
Earth's surface gravity is 9.8 meters per second squared.
Explanation: