Answer:
Aerobic exercise became part of this movement in the 1970s.
Answer:
9m
Explanation:
Given parameters:
Volume of the water = 5liters;
Since density = 1g/cm³
1L = 1000cm³
5L = 5000cm³
So;
mass = density x volume = 1 x 5000 = 5000g ; 5kg
Work done = 450J
Acceleration due to gravity = 10m/s²
Unknown:
Depth of the well = ?
Solution:
To solve this problem;
Work done = mass x gravity x depth
450 = 5 x 10 x depth
depth = 9m
Answer:
Explanation:
Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
Answer:
dam/hydro power
Explanation:
estuary is the place where rivers meet the ocean, there are a lot of currents there (waves...) so it likely means thery use a dam or some sort of way of collecting electricity from the motion of the water there. many birds live in estuaries because of being able to find fish to feed from