Blue light will bend more than others because it has a slightly greater refractive index.
Answer:
T'=46.6 K
Explanation:
Let T be the temperature of a hot reservoir, T' be the temperature of cold reservoir.
For a Carnot's engine, efficiency can be calculated as follows:
Where, W is the amount of work done, Q is the amount of heat extracted from the hot reservoir.
Substitute the values: W= 8.0 J
Q = 10.0 J
T = 233 K
Thus, the temperature of the cold reservoir is 46.6 K.
Answer:
a) Centripetal force = 80.4 N
b) Tension in the monkey's arm = 167.7 N
Explanation:
The centripetal force is the force keeping the monkey in circular motion and it is given by
F = (mv²/r)
m = mass of the monkey = 8.91 kg
v = velocity of the monkey = 2.61 m/s
r = 75.5 cm = 0.755 m
F = (8.91×2.61²)/0.755
F = 80.4 N
b) At the lowest point, there are 3 forces acting on the monkey, the tension in the arm, the monkey's weight and the centripetal force.
A quick force balance on the monkey at the lowest point gives
F = T - mg
80.4 = T - (8.91×9.8)
T = 80.4 + 87.32
T = 167.72 N
1) <span>The function of the electron transport chain is to pump protons in the mitochondrion inter-membrane, thus building up a proton gradient. This gradient will allow the ATP syntheses</span><span>.</span>
2) Why we need oxygen for the electron transport chain:
At the end of the electron transport chain is the Oxygen that will accept
electrons and picks up protons to form water. If the oxygen molecule is not there the electron transport chain
will stop running, and ATP will no longer be produced. Basically, we need the oxygen to produce more ATP.
Answer:
77.9 km/h
Explanation:
We determine the initial momenta of lion and gazelle.
Lion: 173 × 80.9 = 13995.7
Gazelle: 36.2 × 63.8 = 2309.56
Since they are running in the same direction, we add their momenta to get the total initial momentum:
After the collision, they are together and have a common velocity. Hence, the total final momentum is
By the principle of conservation of momentum, the total initial momentum is equal to the total final momentum, provided there are no external forces.