Answer:
The moment of inertia of the turntable about the rotation axis is 0.0225 kg.m²
Explanation:
Given;
radius of the turnable, r = 60 cm = 0.6 m
rotational kinetic energy, E = 0.25 J
angular speed of the turnable, ω = 45 rpm
The rotational kinetic energy is given as;

where;
I is the moment of inertia about the axis of rotation
ω is the angular speed in rad/s


Therefore, the moment of inertia of the turntable about the rotation axis is 0.0225 kg.m²
Answer:
Weight on Venus = 443.75 N
Explanation:
Weight of a body is the product of mass and acceleration due to gravity.
So we have
Weight = Mass x Acceleration due to gravity
W = mg
Mass, m = 50 kg
Acceleration due to gravity, g = 8.875 m/s²
W = 50 x 8.875 = 443.75 N
Weight on Venus = 443.75 N
Answer:

Explanation:
From the question we are told that
The number of turns is 
The radius is 
The position from the center consider is x = 3.45 cm = 0.0345 m
The induced emf is 
Generally according to Gauss law

=> 
Where A is the cross-sectional area of the solenoid which is mathematically represented as

=> 
=>
ggl;
Here
is the permeability of free space with value

=> 
=> 
Answer:
option E
Explanation:
given,
Parallax angle(d) = 1 arcsecond
using Parallax formula

p is the parsecs angle which is measured in 1 arcsecond
d is the distance in parsec
now,



we know,
1 parsec = 3.26 light year
hence, the answer will be option E
C. because if you push a ball on one side and on the other side with the same amount of force at the same time it won’t move.
Hope this helps