Answer:
Only main sequence stars have a well-defined relationship between spectral type and luminosity.
Explanation:
Low-mass stars have much longer lifetimes than high-mass stars.
False. The nuclear energy is found within the nucleus. Electrons are located outside the nucleus.
Answer:
The speed of the 270g cart after the collision is 0.68m/s
Explanation:
Mass of air track cart (m1) = 320g
Initial velocity (u1) = 1.25m/s
Mass of stationary cart (m2) = 270g
Velocity after collision (V) = m1u1/(m1+m2) = 320×1.25/(320+270) = 400/590 = 0.68m/s
Answer:
The gravitational force becomes 4 times i.e 400N
Explanation:
Mechanical Wave cannot travel in space vaccumes, which would be considered "Empty Space" in your situation.
