Which statement about images is correct? a) A virtual image cannot be formed on a screen. b) A virtual image cannot be viewed by
1 answer:
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I attached the missing picture.
We can figure this one out using the law of conservation of energy.
At point A the car would have potential energy and kinetic energy.
Then, while the car is traveling down the track it loses some of its initial energy due to friction:
So, we know that the car is approaching the point B with the following amount of energy:
The law of conservation of energy tells us that this energy must the same as the energy at point B.
The energy at point B is the sum of car's kinetic and potential energy:
As said before this energy must be the same as the energy of a car approaching the loop:
Now we solve the equation for
:
We can figure this one out using the law of conservation of energy.
At point A the car would have potential energy and kinetic energy.
Then, while the car is traveling down the track it loses some of its initial energy due to friction:
So, we know that the car is approaching the point B with the following amount of energy:
The law of conservation of energy tells us that this energy must the same as the energy at point B.
The energy at point B is the sum of car's kinetic and potential energy:
As said before this energy must be the same as the energy of a car approaching the loop:
Now we solve the equation for
Given:
m = 1160 kg
g = 9,81 m/s²
v = 2.5 m/s
Unknown:
k spring constant
x spring compression
1. equation to use is Newton's 2nd law and Hook's law:
2. equation to use, the energy of the spring must equal the energy of the satellite:
Combinig the two equations:
m = 1160 kg
g = 9,81 m/s²
v = 2.5 m/s
Unknown:
k spring constant
x spring compression
1. equation to use is Newton's 2nd law and Hook's law:
2. equation to use, the energy of the spring must equal the energy of the satellite:
Combinig the two equations: