Since there isn't a word about the direction of the taxi's
motion, we're in no position to talk about 'velocity', so we'll
just talk about 'speed'.
|Acceleration| = (change in speed) / (time for the change)
= (230 mph) / (30 sec)
= 23/3 mile / hour-sec .
This is just a hypothetical question, made up for Physics practice ...
so I'm not too worried about the taxi's final speed of 230 mph.
There's no way the Police are going to catch him, even in their
helicopter, so he's safe for a while.
What DOES bother me is that ugly unit for acceleration ...
mile / hour-second. It's a perfectly valid unit of acceleration,
having the dimensions of [distance / time²], but it's not one
that anybody has a feeling for, so we can't relate to it and we
don't know what it means. We need to change it to a unit that
we understand. That's not hard to do.
(230 mile/hour-sec) x (1,609 meter/mile) x (1 hour/3,600 seconds)
= (230 x 1,609 / 3,600) meters/second²
= 102.82 m/s² = 10.5 G's !
That's a problem. The taxi is pulling 10.5 G's, the police helicopter
is in hot pursuit, the driver is passing out, and the taxi is almost
certainly falling apart around him. Meanwhile, from the back seat,
the passenger is yelling "Check your data!". CHECK YOUR DATA !
You have to use the data from your experiment so I can’t help u since I didn’t do your expirement
Answer:
For each 1.5 cm the input piston moves, then output piston will move 0.5 cm
Explanation:
Let cross-sectional area of the input piston = A
Let cross-sectional area of the output piston = 3A
pressure (P) = Force (F) / Area (A)
F = PA
For a constant gravitational force on the inlet and outlet piston;
P₁A₁ = P₂A₂
But pressure = ρgh
where;
ρ is density of water
g is acceleration due to gravity
h is the distance or height moved by the piston
(ρg)h₁A₁ = (ρg)h₂A₂
h₁A₁ = h₂A₂
Area of output piston = 3 times area of input piston
h₁A₁ = h₂(3A₁)
For each 1.5 cm the input piston moves, then output piston will move;
1.5A₁ = h₂(3A₁)
1.5 = 3h₂
h₂ = 1.5 / 3
h₂ = 0.5 cm
Thus, for each 1.5 cm the input piston moves, then output piston will move 0.5 cm
Answer:
Sewage dumps pollute our waterways causing death of marine life, water pollution, and disease.
Explanation:
Sewage dumps. bring disease or death to our ecosystems