Answer:
The centripetal force will be 1/2 as big as it was. (option c)
Explanation:
Recall that centripetal force (
) is defined as: 
where "v" is the tangential velocity of the object in circular motion, "r" is the radius of rotation and "m" is the object's mass.
So if we start with such formula with a given mass, radius, and tangential velocity, and then we move to a situation where everything stays the same except for the radius which doubles, then the new centripetal force (
) will be given by: 
and this is half (1/2) of the original force:
which is expressed by option "c" of the provided list.
Answer:
A C
Explanation:
The statement of the exercise is a bit strange, but if the distance between the load increases.
The following phenomena must occur.
* If the charge has a spatial distribution, the electric field should reduce the electric field of a point charge at the same distance
* As the distance increases the value of the electric field decreases in quadratic form
therefore when reviewing the correct answers are
if the total load is q, answer A is correct
and answer C is always correc
Answer:
20kg
30kg
60kg
120kg
since weight is mass x force,
and gravitational force in earth is 10N;
mass will me weight/force
Explanation:
Answer:
f=qB/2
m
Explanation:
The cyclotron frequency is the number of revolutions the particle makes in one second. calculate the cyclotron frequency for this particle
solution
The Lorentz force 
is the centripetal force
and makes the particles path to revolve in a circle:
qvB=mv^2/r
radius=r
m=mas of the particle
B=magnetic flux
q=quantity of charge
v=velocity of the particle
v=qBr/m
where v is the velocity of the particle
recall the velocity v=rω
v=2*Pi*f*r
=qBr/m
f=qB/2m
the cyclotron frequency is therefore f=qB/2m
the period(the time it take to make a complete oscillation) will be the inverse of frequency
T=2m/qB
