Two identical cylinders contain the same gas. IfA contains three times as much gasas B, which cylinder has the higherpressure?1.
1 answer:
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Answer:
Second Newton's law
Explanation:
Second Newton's law states that the acceleration of an object is related to the mass of an object and the force applied to it by:
where
F is the net force applied to an object
m is the mass of the object
a is the acceleration
The equation can be rewritten also as
(1)
we see that the acceleration is directly proportional to the force applied, F, and inversely proportional to the mass of the object, m.
In this problem, the force applied to the two objects (refrigerator and dumbbell) is the same, so we must look at their mass. Their mass can be found starting from their weight, which we know:
- refrigerator:
- dumbbell:
The dumbbell has a smaller mass, therefore by looking at formula (1), we can see that it will have more acceleration, and this is why it will move faster.
Answer:
f = -60 cm, this means tha the focal point is on the same side as the side where the object is located.
Explanation:
let u be the distance from the lens to the object and u = -35 cm, v be the distance from the lens to the image and m is the magnification and m = -v/u and f is the focal point.
Answer:
It will not hit.
Explanation:
In this problem, we need to tell that was the cannonball able to hit its target of 50 meters when the initial velocity was 20 m/s.
When it will hit the target, final velocity, v = 0
Using third equation of motion as follows :
Here, a =-g
The target is in a straight line 50m away on the x-axis. As 50m is far from 20.40 m and that’s why it won’t hit.