Basically it is the difference in velocity divided by the time it takes to make that change.
Answer: 3- Large cells of rising and sinking gasses
Explanation: Hotter gas coming from the radiative zone expands and rises through the convective zone. It can do this because the convective zone is cooler than the radiative zone and therefore less dense. As the gas rises, it cools and begins to sink again. As it falls down to the top of the radiative zone, it heats up and starts to rise. This process repeats, creating convection currents and the visual effect of boiling on the Sun's surface.
A) be too hot to support life
Answer:
Electrons
Explanation:
Conductors can be charged by electrons, while insulators cannot. Insulators inhibit the flow of electrons; conductors allow free flow of electrons.
Answer:
(1) 3.0 dm
Explanation:
Due to the law of conservation of energy, the initial gravitational potential energy of the object will be all converted into elastic potential energy of the spring as the object hits the spring:

where
m = 4.0 kg is the mass of the object
g = 9.8 m/s^2 is the acceleration due to gravity
h = 1.0 m is the initial height of the object
k = 850 N/m is the spring constant
x is the compression of the spring
Solving the equation for x, we find:
