Answer:
The small mass got warmer than the large mass.
Explanation:
Hope this helps!
The distance of the man from the mirror is 3m
From the characteristics of image formed in a plane mirror,
- Virtual and erect
- Formed behind the mirror
- Same size as the object
- Laterally inverted
- Distance of the image behind the mirror is the same as the distance of the object from the mirror.
⇒ From the last point,
- Let the distance of the image behind the mirror be x
- Also the distance of the man from the mirror is x
⇒ From the question,
- x+x = 6
- 2x = 6
- x = 6/2
- x = 3 m
Hence, The distance of the man from the mirror is 3m
Learn more about mirror here:
Answer:
Newton/meter
Explanation:
Acceleration is defined as the rate of change of velocity.
Therefore, the SI units of acceleration is m/sec²
However, acceleration is also involved in Newton's second law:
Force = mass * acceleration
Newton = kg * unit of acceleration
Therefre:
unit of acceleration = Newton / kg
Hope this helps :)
Answer:
All statement are correct.
Explanation:
1. Electric field lines are the same thing as electric field vectors, electric field are mathematically vectors quantity. These vectors point in the direction in which a positive test charge would move.
2. Electric field line drawings allow you to determine the approximate direction of the electric field at a point in space. Yes it is correct tangent drawn at any point on these lines gives the direction of electric filed at that point.
3. The number of electric field lines that start or end at a charged particle is proportional to the magnitude of charge on the particle, is a correct statement.
4.The electric field is strongest where the electric field lines are close together, again a correct statement as relative closeness of field lines indicate a stronger strength of electric field.
Hence we can say that all the statement are correct.
Answer:
When a mercury thermometer is immersed in a hot liquid, the mercury level goes down at first and then goes up.
