Answer:
Explanation:
Matter occurs in four states: solids, liquids, gases, and plasma.
States of matter are generally described on the basis of qualities that can be seen or felt.
A solid has a definite shape and volume because the molecules that make up the solid are packed closely together and move slowly.
Answer:
3.08m/s²
Explanation:
Given parameters:
Radius = 20m
Tangential velocity = 7.85m/s
Unknown:
Centripetal acceleration = ?
Solution:
Centripetal acceleration is the acceleration of a body along a circular path.
it is mathematically given as;
a = 
v is the tangential velocity
r is the radius
a = 
= 3.08m/s²
The strict scientific definition of work is
Work = (force) x (distance) .
If you exert a force but not through any distance, then technically,
no work has been done. You may break out in sweat, and your arm
may start to tremble and ache. But according to Physics, no work
has been done until you lift that bale a little higher.
This is a pretty long question
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years
