Answer:
Therefore the magnitude of tangential velocity is 20 m/s.
Explanation:
Tangential velocity:The tangential velocity is the straight line velocity of at any point of rotating object.
It is denoted by
ω= angular velocity
r = radius of rotating object.
Angular velocity: Angular velocity is ratio of angle to time.
Here ω= 50 rad/s and r = 0.4 m
Tangential velocity=(50 ×0.4)m/s
=20 m/s
Therefore the magnitude of tangential velocity is 20 m/s.
As the water russhes toward the shore, it rises because it is pushing against it.<span />
Answer: 0.522 m
Explanation:
This situation is related to projectile motion, where the initial velocity of the car has only the horizontal component. This means the angle is equal to zero (). And the equations we will use to find the height of the cliff are:
(1)
Where:
is the final height of the car
is the initial height
is the initial velocity of the car
is the time
is the acceleration due to gravity
is the angle
is the horizontal distance traveled by the car after passing the cliff
Well, firstly we have to find from (1):
(3)
(4)
Substituting (4) in (2):
(5)
Isolating :
(6)
(7)
Finally:
Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.
There is only one pressure this situation would be a "constant pressure" process