A comparison is always included in a comparative investigation. Comparative investigation collects data about different objects, features, organisms, sometimes under a different set of conditions to compare them. The similarities and differences that occur during a set of time or conditions are observed and compared.
C. T,B,U,D,C, and S. D is a tempting answer but it's actually the gluons that transmit the strong force.
Answer:
zero
Explanation:
In this system, only conservative forces act. Therefore, the mechanical energy, that is, the sum of the kinetic energy and the potential energy, remains constant. When the mass is at its maximum displacement from equilibrium, its potential energy is maximum, therefore, its kinetic energy is minimal, that is to say, that its instantaneous velocity at that point is zero.
I) Tension in the spring = 2N
ii) Angular speed of the bung=5 rads-¹
iii) The time(T) it takes to make one complete revolution=1.256 seconds
<h3>Circular motion</h3>
Formula used to calculate the time(T) it takes to make one complete revolution = 2π √(l/g)
l = radius= 40cm = 0.4m
g = acceleration due to gravity = 10m/s-²
π =3.14( constant)
T = 2× 3.14 × √0.4/10
T = 6.28 ×√0.04
T = 6.28 × 0.2
T= 1.256 seconds
Formula to calculate angular speed(w)= 2π/T
where T= 1.256 secs
Therefore w = 2×3.14/1.256
w = 6.28/ 1.256
w = 5 rads-¹
Formula to calculate Tension in the spring(F)
= mrw²
where m= 200 g = 0.2kg
r = radius= 40cm = 0.4m
w = angular speed = 5 rads-¹
Therefore F = 0.2 × 0.4 × 5²
= 0.08 ×25
= 2N
Learn more about angular speed here:
brainly.com/question/6860269
Most of the force is determined by frontal area and speed. The object's speed and cross-sectional area are the two fundamental factors that influence air resistance.
<h3>What two principal factors affect the force of air resistance on a falling object? </h3>
Most of the force is determined by frontal area and speed. The object's speed and cross-sectional area are the two fundamental factors that influence air resistance. There will be more air resistance the quicker an object is moving. The same is true for a big cross-sectional area; a larger surface area causes more air resistance.
The object's speed and cross-sectional area are the two most frequent variables that directly affect the quantity of air resistance. The amount of air resistance rises with increasing speed.
The acceleration during a fall will be smaller than g when air resistance is present because it slows down the velocity of the falling objects. The object's speed and surface area are two critical parameters that affect air resistance.
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To learn more about air resistance refer to:
brainly.com/question/25748718
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