Recent questions in Physics Fundamentals

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Snow-line?Astrophysicsssssssssssss

What is snow-line ? how is that related to the existence of some giant exoplanets ?
0

From which end (north or south) of a bar magnet do magnetic field lines emerge?

North or South? Please provide any explanation for the correct answer
5

Radiation pressure is?

Light with an intensity of 1 kW/m2 falls normally on a surface and is completely reflected. The radiation pressure is:​1. 1kPa2. 3×1011Pa3. 1.7 × 10−6 Pa4. 3.3 × 10−6 Pa5. 6.7 × 10−6 Pa
1

Light with an intensity of 1kW/m2 falls normally on a surface and is completely absorbed. The radiation pressure is:

Light with an intensity of 1kW/m2 falls normally on a surface and is completely absorbed. The radiation pressure is:​1. 1kPa2. 3×1011Pa3. 1.7 × 10−6 Pa4. 3.3 × 10−6 Pa5. 6.7 × 10−6 Pa​The answer is D, but I don't know why.
1

Physics Fundamentals - University

A certain wire stretches 0.90 cm when outward forces with magnitude F are applied to each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretchesi need steps​
2
1-6 of 7

Physics Fundamentals - University

A certain wire stretches 0.90 cm when outward forces with magnitude F are applied to each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretchesi need steps​
2

Light with an intensity of 1kW/m2 falls normally on a surface and is completely absorbed. The radiation pressure is:

Light with an intensity of 1kW/m2 falls normally on a surface and is completely absorbed. The radiation pressure is:​1. 1kPa2. 3×1011Pa3. 1.7 × 10−6 Pa4. 3.3 × 10−6 Pa5. 6.7 × 10−6 Pa​The answer is D, but I don't know why.
1

Radiation pressure is?

Light with an intensity of 1 kW/m2 falls normally on a surface and is completely reflected. The radiation pressure is:​1. 1kPa2. 3×1011Pa3. 1.7 × 10−6 Pa4. 3.3 × 10−6 Pa5. 6.7 × 10−6 Pa
1

From which end (north or south) of a bar magnet do magnetic field lines emerge?

North or South? Please provide any explanation for the correct answer
5

Snow-line?Astrophysicsssssssssssss

What is snow-line ? how is that related to the existence of some giant exoplanets ?
0
1-6 of 7
Physics Fundamentals