12 newtons is your answer
<span>Supercooling
is lowering the temperature of liquid below its freezing point. This is also
known as the cooling of liquid. Supercooling can be minimized by cooling the
liquid and steering the liquid fast while it is freezing. Freezers in the
refrigerators shows the example activity of supercooling.</span>
Answer:
Statics which is when dealing with forces acting out on body and the possible motives of the body system. Kinetics which explains the motion that can occur in any type of situation.
Explanation:
Answer:
Time taken = 444.4s
Explanation:
how long = the time taken
and from the definition of speed,we have that :
Average speed = distance ( m)
_____________
time (s)
therefore,Time = distance (m) / average speed (m/s)
Time = 8000/18
Time = 444.4 (s)
Answer:
E=147898.01J
Explanation:
A 5.0-kg cannonball is fired over level ground with a velocity of 2.00 ⨯ 102 m/s at an angle of 25° above the horizontal. Just before it hits the ground its speed is 150 m/s. Over the entire trip, find the change in the thermal energy of the cannonball and air
firstly , we look for the time of flight it takes to make the projectile path
T=2Usin∅/g
take g= 9.81m/s
T=2*200sin25/(9.81)
T=17.23Secs
energy is force *distance
E=f*d
f=m*g
f=5*9.81
f=49.05N
s=distance
s=(v+u)T/2
s=(150+200)17.23/2
s=3015.25m
49.05N*3015.25m
E=147898.01J