Answer:
Final temperature = 52.44 °C
Explanation:
We have equation for thermal expansion
ΔL = LαΔT
We have change in length = Circumference of 2.35 cm radius - Circumference of 2.34 cm radius = 2π x 2.35 - 2π x 2.34 = 0.062 cm
Length of eyeglass frame = 2π x 2.34 = 14.70 cm
Coefficient of linear expansion, α = 1.30 x 10⁻⁴ °C⁻¹
Substituting
0.062 = 14.70 x 1.30 x 10⁻⁴ x ΔT
ΔT = 32.44°C
Final temperature = 32.44 + 20 = 52.44 °C
Aerobic uses oxygen to liberate heat while anaerobic is in the absence of oxygen.
The most appropriate answer is B !! No heat flow as there is no difference in temp between them !!
Answer:
It must flow from negative to positibe
Answer:
v = 1.32 10² m
Explanation:
In this case we are going to use the universal gravitation equation and Newton's second law
F = G m M / r²
F = m a
In this case the acceleration is centripetal
a = v² / r
The force is given by the gravitational force
G m M / r² = m v² / r
G M/r = v²
Let's calculate the mass of the planet
M = v² r / G
M = (1.75 10⁴)² 5.00 10⁶ / 6.67 10⁻¹¹
M = 2.30 10²¹ kg
With this die we clear the equation to find the orbit of the second satellite
v = √ G M / r
v = √ (6.67 10⁻¹¹ 2.30 10²¹ / 8.75 10⁶)
v = 1.32 10² m