30 because v1 - v2 is 30 v1 is 40 v2 is 10
Answer:
this is just a black bar, I do not understand.
Explanation:
b. Refraction
Explanation:
Fish in the aquarium are looking much bigger than they are due to refraction.
Refraction causes the path of light to bend and the velocity and wavelength attenuated.
This phenomenon occurs when light travels between two materials of different densities.
- Air has a refractive index of 1
- Water has a refractive index of 1.33
- When light form water comes to air, the their angle changes.
- This causes the magnification of the fish.
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Hello!
Recall the equation for momentum:
p = linear momentum (kgm/s)
m = mass (kg)
v = velocity (m/s)
<u>Part 1: </u>
We can solve for the total momentum using the above equation. Let m1 represent the 0.2 kg cart, and m2 represent the 0.4 kg cart.
Since they move off together:
<u>Part 2: </u>
Using the conservation of momentum:
m2 was initially at rest, so:
<u>Part 3:
</u>
We can calculate the force by first calculating the impulse exerted on the carts.
Recall the equation for impulse:
We can use either cart, but for ease, we can use the 0.4 cart that starts from rest.
Thus:
Now, calculate force with the following:
Plug in the values:
An electrostatic generator (also known as a Van de Graff generator) uses a moving belt, like a conveyor belt to make an electrical charge inside of a hollow metal globe supported by a rod. It produces very high DC or direct current.