Controlled variables are the factor that remains at the same phases of an experiment.
Anything kept constant or constrained in a research study is referred to as a control variable. Despite not being relevant to the study's objectives, this variable is controlled because it might have an impact on the results.
Variables can be controlled either directly by maintaining their value throughout a study (for example, by maintaining a constant room temperature in an experiment) or indirectly by using techniques like randomization or statistical control (e.g., to account for participant characteristics like age in statistical tests).
Hence, controlled variables are that variables which are kept at the same phases of an experiment.
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the controlled varaibles aka E. because the control group is Group of subjects in the experiment that experimental group as compared to
direction of the elevator's acceleration?
A. 0.23 m/s2 up
B. 1.3 m/s2 up
C. 6.5 m/s2 down
D. 11 m/s2 down
The magnitude and direction of the elevator's acceleration would be
Given the Parameters :
The Normalforce can be calculated using the relation :
Substituting the Parameters into the equation :
Scale reading > weight of woman (73 × 9.8)
810 < 715.4 (acceleration will be upward)
Therefore, the acceleration of the elevator would be
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Answer:
b
Explanation:
n = m(g +a)
n= normal force (N)
m=mass (kg)
g=acceleration of gravity
a= acceleration of elevator
rearrange:
a= n/m - g
a= (810 N/73 kg) - 9.8 m/s ^2
a= 1.3 m/s ^2 up
and the acceleration is upwards bc her weight is less than the scale reading
Answer: C). not fixing leaky faucets and pipes.
Explanation:
Water is a necessary ingredient that is required by all living beings in the world. Due to increase in population of humans all over the world the demand for water is also increasing. As a result of this the concentration of water in water bodies depeleting. Therefore, special initiatives should be taken to conserve water.
Among the options given, not fixing leaky faucets and pipes is the correct option. This is because of the fact that leaky faucets and pipes may lead to the loss of useable freshwater. This is against conservation of water.