HElp pl What was the first standard metric unit of mass?
When an object neither sinks or floats it has buoyancy.
A fish maintains buoyancy by inflating an internal bladder with .
What happens to the pressure in water as an object gets deeper?
What standard measure does this represent?1 cubed centimeter of water

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?