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Fofino [41]
3 years ago
13

Explain quantum zeno effect in one sentence

Physics
1 answer:
otez555 [7]3 years ago
5 0
It’s a feature of quantum-mechanical systems allowing a particle's time evolution to be arrested by measuring it frequently enough with respect to some chosen measurement setting.
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Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a spe
Blizzard [7]

Answer:

The right answer is D) the total momentum of the system is 0.047 kg · m/s toward the right.

Explanation:

Hi there!

The total momentum of the system is given by the sum of the momentum vectors of each cart. The momentum is calculated as follows:

p = m · v

Where:

p = momentum.

m = mass.

v = velocity.

Then, the momentum of the system will be the momentum of cart A plus the momentum of cart B (let´s consider the right as the positive direction):

mA · vA + mB · Vb

0.450 kg · 0.850 m/s + 0.300 kg · (- 1.12 m/s) = 0.047 kg · m/s

The right answer is D) the total momentum of the system is 0.047 kg · m/s toward the right.

6 0
3 years ago
What apparatus can be used to measure the internal diameter of a test tube?​
adelina 88 [10]

Answer:

To determine the volume of a given beaker/calorimeter by measuring its internal diameter and depth with vernier calipers. A vernier caliper is a measuring instrument with two scales: a main scale and a vernier scale that slides over the main scale.

Explanation:

5 0
2 years ago
Which phenomenon related to light allows scientists to measure the distance between a star and Earth? A. Dark patches appear in
zalisa [80]

Answer: C. Stars have different colors based on their temperature

Explanation: The stars have different colors because the further away from earth the stars physical appearance may change.

4 0
3 years ago
If a substance besides water is changed from a gas to a liquid and then to a solid, what happens to the particles?
NARA [144]
The correct answer is they get closer together

Going from gas into a liquid makes the molecules move closer together, which happens again when you turn it into a solid.
3 0
3 years ago
Read 2 more answers
HELP NOW PLEASE ANSWER THE QUESTION THE PICTURE IS ATTACHED BELOW
Andrej [43]

Answer:

c

Explanation:

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7 0
3 years ago
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