<span>A theory of motivation by Steven Reiss, the 16 Basic Desires Theory talks about the sixteen fundamental needs, values and drives that motivate a person.</span>
Answer:
4.9 cm
Explanation:
From Hook's Law,
F = ke......................... Equation 1
Where F= force, e = extension, k = spring constant.
Note: the Force acting on the the spring is the weight of the mass.
W = mg.
F = mg.................... Equation 2
Where m = mass, g = acceleration due to gravity
Substitute equation 2 into equation 1
mg = ke
make e the subject of the equation
e = mg/k............... Equation 3.
Given: m = 2 kg, g = 9.8 m/s², k = 400 N/m
e = (2×9.8)/400
e = 19.6/400
e = 0.049 m
e = 4.9 cm
Answer:
The amount of force acting on the spring.
Explanation:
Here, Fspring= kΔx is a equation denoting the amount of force acting on the spring.
where, k = spring constant.
Δx= change in the length of the spring.
so, for every Δx change in spring length, kΔx force acts on the spring.
According to the second law of motion, force is the product of mass times acceleration. If we were to solve for the force, we would need the acceleration and the mass.
Acceleration was not given in the problem, but we can solve for it by using the velocity and the time because by definition, acceleration is the change in velocity over time.

The initial velocity is 16.0m/s because it is the first recorded time. The final is 0 m/s or the last recorded velocity. The time we will use is 2.0 s because it is the time the change in velocity occurred.




Now that we have acceleration, we can now solve for the Force. Again Force is the product of mass and acceleration.



or

The force is -2N. Now if you are looking for the magnitude of the force then you can just put 2N.
The negative sign indicates the direction of the force, if it is negative this means that the force applied was in the opposite direction.
<span>The hypothesis may be,
"If the compost is older, then the height of the bean plants will be taller."
Because it relates the independent and dependent variables
The independent variable is the age of compost
Because it is the variable being changed
The dependent variable is the plant height of the bean plant
Because it is the variable on which the effect of the independent variable is being investigated
The constant are the sunlight and water provided.
Because they are the same for each group
Flat C is the control group
Because it is given no compost
There are 3 groups and each group has 25 trials.</span>