Answer:
Δ KE = -495 J
Explanation:
given,
mass of the ice hockey player = 110 Kg
initial speed = 3 m/s
final speed = 0 m/s
distance, d = 0.3 m
change in kinetic energy


Δ KE = -495 J
Hence, the change in kinetic energy is equal to Δ KE = -495 J
Answer:
I don't know if it's fair for me to write an entire essay for you
but if you would like I can list some reasons you can incorporate into an essay.
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-If you are joining a gang you are most likely going to have a greater chance of being targeted, even if it seems like you would be protected.
-Most of the time when someone joins a gang a child is being separated from a parent and will face most aggression.
-This can also cause academic failure in students, from lack of education and probably a pretty bad background.
-For teens when joining a gang they will do things that aren't suited for their age (I would list things but I'm not trying to get myself reported if you know what I mean)
-You will also have a great risk of being imprisoned and facing bad consequences, and these consequences can even be having the death penalty.
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I hope this is good enough, sorry I didn't give you a full essay. I think this should help with that though.
Explanation:
Given:
u = 20 m/s
a = 5 m/s^2
v = 30 m/s
t = ?
Use the first kinematic equation of motion:
v = u + at
t = (v - u)/a = 10/5 = 2 seconds
Then every line segment has one and only one mid-point.
(っ^▿^)
Answer:
20 J
Explanation:
Kinetic energy is given as half of the product of mass and the square of velocity of an object:
KE = 
where m = mass = 40 kg
v = velocity = 1 m/s
Hence, Mary's kinetic energy is:
KE = 
KE = 20 * 1 = 20 J
She has a kinetic energy of 20 J.