The answer is
6.67 Ohms (I tried to find the ohms sign but it looks like the lululemon logo)
Answer:
Rockets provide a wonderful example of Momentum Conservation. As momentum in one direction is given to the rocket's exhaust gases, momentum in the other direction is given to the rocket itself.
Explanation:
First, think of two masses connected by a lightweight (massless!) compressed spring. When the two spring apart, conservation of momentum tells us the Center of Mass remains where it was (or moving as it was).
PTot,i = p1i + p2i = 0 + 0 = 0
PTot,f = p1f + p2f = PTot,i = 0
p1f + p2f = - m1 v1f + m2 v2f = 0
Solution: C. Pangea
The hypothesis of Continental drift suggests that in past, there was only one landmass on the Earth -Pangaea which drifted apart due to movement of plate tectonics causing earthquake. This hypothesis is supported by many evidences which includes presence of similar fossils on different landmasses, common land features such as widespread presence of glacial sediments etc.
Answer: yes, a change in mass affects the total, kinetic and potential energy.
Explanation: The formula that defines the total energy of a loaded spring in simple harmonic motion is given below as
E = 1/2 kA²
Where E = total energy
k = spring constant = ω²m
A = amplitude
As we can see from the formulae that the total energy is dependent on the spring constant (k) which in turn depends on the mass of the loaded spring.
Hence an increase in the mass ( with a constant amplitude) will cause a change ( increase) in the spring constant which in turn changes ( increases) the total energy of the system.
The kinetic energy is given as
K.E = mv²/2 where k = ω²m
As we can see, a change in mass of the loaded spring has a direct effect on the kinetic energy.
Potential energy is given as
P.E = kx²/2 where k = ω²m
Since the value of k is directly affected by the mass and the potential energy is affected by the spring constant (k) hence the potential energy is dependent on the mass indirectly hence any change in mass affects the potential energy too
