KE = 1/2 mv^2
KE = 1/2 (700)(80)^2
KE = 2240000 J
In a generator, mechanical
energy is converted electrical energy. The answer is letter D. the mechanical
energy in the generator produces energy by making the machines work and then transmitting
this into the power lines of commercial industries, communities and others.
In this question the options are missing; here are the options:
What was the dependent variable in Drew's experiment?
A. The depth at which the algae were found
B. The sky conditions on a particular day
C. The amount of algae measured
D. The lake that was being observed
The answer to this question A. The depth at which the algae were found
Explanation:
In an experiment, it is common there are at least two factors or variables. Additionally, the variable that is modified by others or that depend on others is always the dependent variable.
In the case of the experiment presented, there are two main factors: sky conditions and depth at which algae can be found. From these, the dependent factor is the depth because this depth changes with the sky condition or depends on the sky conditions. Also, the dependent variable is always the factor being studied, for example, in this case, Drew's focus is to study how the location of algae in terms of depth changes.
Answer:
<em>Amplitude= 8 m</em>
Explanation:
<u>The Amplitude of a Wave</u>
Sinusoidal Function refers to a mathematical curve with a smooth and periodic oscillation. Its name comes from the sine function and is characterized by the amplitude or the maximum displacement or distance moved by a point on a vibrating body measured from its equilibrium position.
To calculate the amplitude from a graph, we measure the maximum point and the minimum point the wave reaches. Then we subtract both values and divide the result by 2.
The shown wave in the figure has a maximum value of 8 m and a minimum value of -8 m. The distance from the maximum to the minimum is 8-(-8)= 16 m, thus the amplitude is 16/2= 8m.
Amplitude= 8 m
Answer:
E. The wheel with spokes has about twice the KE.
See explanation in: https://quizlet.com/100717504/physics-8-mc-flash-cards/
