The weight is the force experienced, whereas the mass represents the actual quantity of matter inside a body..
weigh on the surface of the earth is equal to mg
mass is m
and at the centre weight is 0 due to 0 acceleration that's 0 g
but mass is always constant and remains m, no matter where you are
Answer:
Final velocity v=19.83 m/sec
Explanation:
We have given initial velocity u =5.13 m/sexc
Acceleration of automobile ![a=3m/sec^2](https://tex.z-dn.net/?f=a%3D3m%2Fsec%5E2)
Time t =4.9 sec
We have to find the final velocity v
According to first law of motion v = u+at ,here v is the final velocity , a is acceleration and t is time
So ![v=5.13+3\times 4.9=19.83m/sec](https://tex.z-dn.net/?f=v%3D5.13%2B3%5Ctimes%204.9%3D19.83m%2Fsec)
So the final velocity is 19.83 m/sec
Answer:
The mass of a single paper is approximately 0.047 lb/paper which in SI Units is approximately 21.77 g/paper
Explanation:
The given information on the size and the weight of paper are;
The mass of a box of 500 sheets of paper = 24 lb
The number of sheets in the paper = 500 sheets
The dimensions of the paper = 17 in. × 22 in., which is equivalent to 43.18 cm × 55.88 cm
The mass of a single paper = The mass of the box of paper/(The number of sheets of paper present in the box)
The mass of a single paper = 24 lb/500 = 0.047 lb/paper
Given that 1 lb = 453.6 g, we have;
0.047 lb/paper = 0.047 lb/paper×453.6 g/(lb) = 21.77 g/paper
The mass of a single paper = 0.047 lb/paper = 21.77 g/paper.
Answer:
A
Explanation:
From a Solenoid we know that a magnetic fiel is always inversely proportional to lenght L or BL = constant
![B= frac{\mu_0}{2R}](https://tex.z-dn.net/?f=B%3D%20frac%7B%5Cmu_0%7D%7B2R%7D)
As I is constant
![\frac{B2}{B1} = \frac{R1}{R2}](https://tex.z-dn.net/?f=%5Cfrac%7BB2%7D%7BB1%7D%20%3D%20%5Cfrac%7BR1%7D%7BR2%7D)
![B2 = 2mT*\frac{18}{21}](https://tex.z-dn.net/?f=B2%20%3D%202mT%2A%5Cfrac%7B18%7D%7B21%7D)
![B2 = 1.714mT](https://tex.z-dn.net/?f=B2%20%3D%201.714mT)
Good luckkkk hope you do well