Answer:
Speed= 10meters per second, Frequency = 4hz
Explanation:
First we need to find the frequency of the wave. The formula for frequency is: f (frequency) = 1 / T (period). This means we need to convert the period into seconds and then use it as a denominator with one on the numerator.
Since the period is 0.25,
1/0.25= 4hz
Now, we just need to multiply the frequency with the wavelength
4hzx2.5= 10
= 10 meters per second
Answer:
The assessment of the muscles' health and the motor neurons <em>(the nerve cells controlling the muscles)</em> is determined by the procedure called Electromyography aka EMG, which identifyes nerves/muscles issues and also the quality of the signal transmission between them; like when the units in a contraction increase, correlates with the increase in the force of contraction. In this particular case of the EMG lab, the subject will squeeze to <em>1kg</em> of force.
A curved line shows the slope is constantly changing. Think about it - an upward curve shows the slope is pretty flat at first but it gets very steep as time increases.
So what is the slope of a Vt graph represent? Well, slope is rise over run, aka delta V over delta t. That’s just the formula for acceleration.
We know the slope is changing, and the slope is acceleration, therefore we can say that the acceleration is changing.
It turns out that if you graph this changing acceleration with time, the acceleration changes at a constant rate - it’s linear, NOT a curve. (If you have specific values you could plot this, but if you’re just talking about general graphs, then just take my word for it).
In summary - if you’re velocity is changing at a non constant rate, then you’re acceleration must be changing (at a constant rate).
Hope this helped!
An ionic compound is a giant structure of ions. The ions have a regular, repeating arrangement called an ionic lattice . The lattice is formed because the ions attract each other and form a regular pattern with oppositely charged ions next to each other.
It’s true
an atom as a whole is electrically neutral