w = instantaneous angular speed = 1.25 rad/s
r = radius = 4.65 m
α = angular acceleration = 0.745 rad/s²
centripetal acceleration is given as
= rw²
= (4.65 ) (1.25)² = 7.27 m/s²
tangential acceleration is given as
= rα
=4.65 x 0.745 = 3.46 m/s²
angle is given as
= 64.5 deg
Answer:
C) Momentum
Explanation:
Refers to an objects mass in motion.
The amount of energy needed to increase the temperature of a substance by
is given by
where
m is the mass of the substance
is its specific heat capacity
is the increase in temperature
The water volume is
, since its density is
, the mass of this sample of water is
The water specific heat capacity is
and the increase in temperature is
Therefore, the amount of energy needed is
Answer:
Drug abuse is best defined as the nonmedical or improper use of a drug that can interfere with a healthy life.
For example, a person that is addicted to cocaine will use it everyday, and will develope agressive behavior, anxiety, sleep disorder, paranoia etc.
This person could get addicted at the point of comiting a robbery, killing and much more.
