Preasure at the bottom would be Air Pressure at the top added to the pressure due to the water height.
so pressure = air pressure + hdg
where,
h = depth of the lake, (432ft into metres)
d = density of water (1000kg/m^3)
g = 9.81 m/s^2 (approx.)
If you are instead clinging to a position halfway from the center to the outer rim of the Ferris wheel, YOUR ROTATIONAL SPEED WILL STILL BE 2 REVOLUTION PER MINUTE.
This is because, every part of the wheel is moving with the same speed, so it does not matter where you sit on the wheel, the rotation per minute will still be the same. It is just like travelling inside a motor car, it does not matter whether you are sitting in the front passenger seat or at the back, the speed of the car remains the same.
I think that the question is simply asking whether the statement is correct.
The statement is wrong! The scientific endeavor (the work of the scientists, the pursue of knowledge) can be potentially harmful. For example, many tests of human medicine have to be performed on animals, and often the medicine causes great suffering in the animals (and gets rejected for testing on humans).
Answer:
i think it is with friction because when we move we go against friction so like when were walking friction is trying to decrease our speed
Explanation:
Answer:
b. 3 m
Explanation:
The computation of the distance travelled is shown below:
As we know that
Work done = Horizontal Force × distance travelled
360 J = 120 N × discount travelled
So, the distance travelled is
= 360 J ÷ 120 N
= 3 m
hence, the correct option is b. 3 m
