Answer: the "cornea" ; and the "lens" .
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Answer:
I'm not sure what your answer choices are but I would consider it a conductor.
Explanation: Things that conduct anything are conductors.
I hope that this will help, good luck.
S=ut+a(t^2)/2 = a(t^2)/2 [since u=0] =(v/t)*(t^2)/2 [since a=(v-u)/t=v/t] =vt/2 =180*{25/(60*60)}/2 km = 0.625 km =625 m
Answer:
Time = 12.27seconds
Explanation:
Given
Speed = 25miles/hour
Distance = 150 yards = 150(0.000568182)miles
Distance (in miles) = 0.0852273miles
Get the time
Speed = Distance/Time
Time = Distance/Speed
Time = 0.0852273/25
Time = 0.0034hours
Time = 0.0034 * 3600secs
Time = 12.27seconds
Answer:
10.9 m
Explanation:
We can solve the problem by using the law of conservation of energy.
The initial mechanical energy is just the kinetic energy of the ball:
where m is the mass of the ball and u = 16.9 m/s the initial speed.
At a height of h, the total mechanical energy is sum of kinetic energy and gravitational potential energy:
where v is the new speed, g is the gravitational acceleration, h is the height of the ball.
Due to the conservation of energy,
(1)
Here, at a height of h we want the speed to be 1/2 of the initial speed, so
So (1) becomes
So we can find h: