Answer:4.22 J
Explanation:
Given
mass of pitcher 
Force applied 
distance moved 
Applying work-Energy theorem which states that work done by all the forces is equal to the change in kinetic energy of the object
Work done by force 
W=
change in kinetic Energy =
K.E.-0=
K.E.=
Magnetic force, gravitational force, electrostatic force, frictional force.
Those are the top 4 main types of forces.
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Answer:
<em>a) 37.5N</em>
<em>b) 9.375Joules</em>
Explanation:
a) According to Hooke's law
F = ke
k is the spring constant
e is the extension;
F = 150 * 0.25
F = 37.5N
b) Work done on the spring = 1/2ke^2
Work done on the spring = 1/2 * 150 * 0.25^2
Work done on the spring = 75 * 0.0625
Work done on the spring = 9.375Joules
2 identical copies of a single replicated chromosome that's connected by a centromere
Both moments of inertia solid cylinder and hoop are the same.
We need to know the rotational inertia of a solid cylinder and hoop.
Solid cylinder inertia is given by
I = 1/2 x M x R²
Hoop cylinder inertia is given by
I = 1/2 x M x (R1 + R2)²
where I is a moment of inertia, M is mass, R is the total radius, R1 is central radius and R2 is skin radius.
The total radius can be defined by
R = R1 + R2
hence R² is
R = (R1 + R2)²
Substitute to solid cylinder inertia
I = 1/2 x M x R²
I = 1/2 x M x (R1 + R2)²
Hence, both moments of inertia solid cylinder and hoop are the same.
Find more on moment of inertia at: brainly.com/question/14460640
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