Answer:
Because of the physical differences in the makeup of the materials light actually travels slower through water and glass.
Explanation:
Answer:
The answer is "-72 k".
Explanation:
Please find the complete question in the attached file.
Given point:
Calculating the area:
1.16 meters because if times the 3 by 5 then add 1 which gives you 16 round the extra meter for the ramp which gives 1.16 mt.
The initial velocity of the hockey puck is obtained as 22 m/s.
<h3>What is the frictional force?</h3>
The frictional force of the hockey puck is the force that causes it to stop. Now;
Ff = μmg
Ff = 0. 51 * 0.16 Kg * 9.8 m/s^2
Ff = 0.8 N
Now;
F = mv^2/2x
Where;
m = mass
v = velocity
x = distance
v =√ 2xF/m
v = √ 2 * 47.7 * 0.8 / 0.16
v = 22 m/s
Learn more about frictional force:brainly.com/question/1714663
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