Answer:
Decaying waste releases methane gas, a greenhouse gas
Explanation:
common sense that isn't very common
<span>0.506 m/s^2
Given the arrangement of rope and the man, he's effectively suspended by a rope from a frictionless pulley. So he's pulling the rope with a force of 371 n causing him to be pulled upwards by his arms. Additionally, the rope goes up to the pulley and back down to the man causing an additional 371 n of force pulling him upwards. So the total force being used to lift the man is 742 n.
Additionally, the man is being pulled downwards by gravity at 9.80 m/s^2. And since he masses 72.0 kg, the downward force in newtons is 72.0 kg * 9.80 m/s^2 = 705.6 n downward.
So the total force being exerted on the man is
742 n - 705.6 n = 36.4 n
To calculate his acceleration, simply divide the number of newtons applied by his mass.
36.4 kg m/s^2 / 72.0 kg = 0.505556 m/s^2
And round to 3 significant figures.
0.505556 m/s^2 = 0.506 m/s^2</span>
All of the forces listed are correct. There are 4 presently known forces.
Second question os B. the Lorentz force. It's given by
F=q(E+VxB) where q is the electric charge, E is the electric field, V is the particle's velocity vector, B is the magnetic flux density, and "x" represents the vector cross product.
Since they are both positively charged, then the force would in fact be repulsion, because they are both the same. If you were to have one positively charged, and one negatively charged, then they would go towards eachother.
I hope this helps, if you need help on this question or any other questions, just ask. I am here to help.
Answer:
Thermosphere
temperature continue to rise up to 1500*C
Ionosphere
Mesosphere
temperature falls to -93*C
Stratosphere
protective ozone layer
UV radiation causes temperature to rise
Troposphere
78% nitrogen, 21% oxygen
temperature drops from 17 to -52*C
Explanation:
