Answer and Explanation: No, the explanation is not plausible. The puck sliding on the ice is an example of the <u>Principle</u> <u>of</u> <u>Conservation</u> <u>of</u> <u>Energy</u>, which can be enunciated as "total energy of a system is constant. It can be changed or transferred but the total is always the same".
When a player hit the pluck, it starts to move, gaining kinetic energy (K). As it goes up a ramp, kinetic energy decreases and potential energy (P) increases until it reaches its maximum. When potential energy is maximum, kinetic energy is zero and vice-versa.
So, at the beginning of the movement the puck only has kinetic energy. At the end, it gains potential energy until its maximum.
The representation is as followed:
As we noticed, mass of the object can be cancelled from the equation, making height be:
So, the height the puck reaches depends on velocity and acceleration due to gravity, not mass of the puck.
Answer:
Expression for angular resolution is;
θ = 1.22π/d
a) 0.85 light year
b) 2.15 x 10³ m
Explanation:
See attached images
Answer:
2
yes
Explanation:
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Answer:
The acceleration of bicyclist is greater than that of the runner.
Explanation:
It is given that,
Initial speed of both bicyclist and a runner is 0 as they both are waiting at a red light,
When the light turns green they start to speed up.
Final speed of the bicyclist is 20 mph in 5 seconds
The runner gets to a final speed of 11 mph in 3 seconds.
20 mph = 8.94 m/s
11 mph = 4.91 m/s
Acceleration of bicyclist is :
Acceleration of runner is :
It is clear that the acceleration of bicyclist is greater than that of the runner.