Keplers law says the planet sweeps out equal area slices of the ellipse-shaped pie in equal times. Thus when the planet is at its closest approach, aligned with the semi minor axis it has to be moving fastest in order to sweep out a big enough arc to obey the law. Moving fastest means it has the largest kinetic energy. Also it's the lowest potential energy. If you think of it like a pendulum, the closest approach of the planet is like the point in a pendulum's arc when it's straight down. It's moving fastest there and all potential energy has been converted to kinetic energy.
Answer:
The buoyant force increases as the submersible enters the water, and it remains constant after the submersible is completely immersed.
Explanation:
The buoyant force acting on an object is given by:
where
is the density of the liquid
is the volume of the object immersed in the liquid
g is the gravitational acceleration
From the formula, we see that as increases, the buoyant force increases as well. Therefore, as the submersible is lowered into the water, the buoyant force gradually increases (because the immersed volume increases); however, when the submersible is completely immersed, no longer changes, so the buoyant force remains constant.
The answer is actually a,b, and d
Brainliest?
Answer:
Turning off your lights will also help reduce the use of non-renewable resources that are harmful to the environment. You can turn off the lights during the day especially if you don't need them. You can also turn off your appliances to help reduce your carbon footprint and help save the planet.
Answer:
Part a)
When rotated about the mid point
Part b)
When rotated about its one end
Explanation:
As we know that the angular acceleration of the rod is rate of change in angular speed
so we will have
Part a)
When rotated about the mid point
now torque is given as
Part b)
When rotated about its one end
now torque is given as