Answer:
The speed of disk is 1.98
Explanation:
Given:
Mass of kg
Spring constant
Compression of spring m
From energy conservation theorem,
Spring potential energy converted into kinetic energy,
Therefore, the speed of disk is 1.98
Answer:
they are happy cause he jumped off a bridge
Explanation:
A. Belts
Cuz you need shoes, the shirt and maybe the socks.
The weight of the needle is 0.007 N.
Explanation:
Surface tension is the force acting on the surface of any fluid or film due to the attractive forces on the surface of them. So it is measured as force acting per unit effective length on the surface. The effective length is the distance or the length which is in contact with the surface.
For example, in the present case, the needle can be in contact with the water body from both sides of the needle. So effective length of the needle will be 2 times the length of the needle. Then the surface tension on the water due to the needle will be
As the length of the needle is given as 5 cm = 0.05 m and the surface tension of water is given as 0.07 N/m, then the weight of the needle will be equal to the force applied by the needle.
So, the weight of the needle is 0.007 N.
The best way to find that you want is the line fit. When acceleration is constant the speed(v) changes smoothly every moment, so the v line must be straight. Differently, the accelaration changes.