Explanation:
Given that,
The dimensions of the largest building in the world is 632 m long, 710 yards wide, and 112 ft high. It basically forms a cuboid. The volume of a cuboidal shape is given by :
Since,
1 meter = 3.28084 feet
632 m = 2073.49 feet
1 yard= 3 feet
710 yards = 2130 feet
V = lbh



Also,


Hence, this is the required solution.
Answer:
The centripetal acceleration of the runner is
.
Explanation:
Given that,
A runner completes the 200 m dash in 24.0 s and runs at constant speed throughout the race. We need to find the centripetal acceleration as he runs the curved portion of the track. We know that the centripetal acceleration is given by :

v is the velocity of runner

Centripetal acceleration,

So, the centripetal acceleration of the runner is
. Hence, this is the required solution.
Answer:
a

b

Explanation:
From the question we are told that
The inner radius is 
The outer radius is 
The nu umber of turns is 
The current it is carrying is 
Generally the magnetic field is mathematically represented as

Where
is the permeability of free space with a constant value

And the given distance where the magnetic field is felt is r = 0.9 cm = 0.009 m
Now substituting values


Fro the second question the distance of the position considered from the center is r = 1.2 cm = 0.012 m
So the magnetic field is


Answer:
3amperes
Explanation:
current = voltage ÷ resistance = 90÷30= 3amperes