Answer:
The moment of inertia of this sphere is
.
Explanation:
It is given that,
Mass of the sphere, m = 4.8 kg
Radius of the sphere, r = 22 cm = 0.22 m
Tangential force, F = 11.2 N
The moment of inertia of the uniform sphere is given by :



So, the moment of inertia of this sphere is
. Hence, this is the required solution.
initial speed of the racer is given as


after applied force the final speed is given as


now during this speed change the racer will cover total distance 185 m
so here we will use kinematics



now the force that chute will exert on the racer will be given as



B) here following is the strategy for solving it
1. first we used kinematics to find the acceleration of the car
2. then we used Newton's II law (F = ma) to find the force
The answer is <span>D- a motorcycle with a constant velocity.
Velocity is much more stable in terms of speed and distance that can be associated with the dynamics of equilibrium (balance) compared to speed alone. It brings the constant relationship between the two elements.
Speed is only focused on time of travel and not with direction. While acceleration does not show equilibrium but only a change in speed.
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Answer:
The value is 
Explanation:
From the question we are told that
The diameter of the nucleus is 
The charge of the proton that makes up the nucleus is 
The energy to be impacted is 
Generally the radius of the nucleus is mathematically represented as

=> 
=> 
Generally from the law energy conservation we have that

i.e

Here

Here
is the initial kinetic energy which is mathematically represented as
Here
is the initial potential energy of the proton and the value is 0 J given that the proton is moving
Also
is mathematically represented as

Here
is the final potential energy which is mathematically represented as

Here
is the charge on the proton with a value of 
So

=> 
So

=> 
Here m is the mass of the moving proton with value 
So

=> 
=> 
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