Answer:
, Nervous tissue is composed of two types of cells, neurons and glial cells. Neurons are the primary type of cell that most anyone associates with the nervous system. They are responsible for the computation and communication that the nervous system provides.
Answer:
a) 1.95 m/s
b) 5.56 m
Explanation:
Given that:
Velocity of the skier 
= 14.3 m/s
For the skier moving in the direction of the wave, we have:
Period (T) = 0.450 s
Relative velocity (V) of the skier in regard with the wave = 
where:
= velocity of the skier
= velocity of the wave
The wavelength 
can be written as:
---------------> Equation (1)
For the skier moving opposite in the direction of the wave, we have:
Period (T) = 0.342 s
Relative velocity (V) of the skier in regard with the wave = 
The wavelength can be written as:
------------------> Equation 2
Equating equation (1) and equation (2) and substituting = 14.3 m/s ; we have:
Collecting the like terms; we have:
b)
The Wavelength of the wave can be calculated using : 
λ ≅ 5.56 m
The correct answer is 9.45 kg.
The formula for calculating the density of an object is expressed as:
Density = mass / volume
Given :
Density = 150kg/m³
Volume of the sphere = negligible
r is the radius = 50/2 = 25cm = 0.25m
We can find the volume of the Styrofoam sphere by
=(4/3)πr³
Volume (V) = (4/3)*π*(0.25)³
Volume = 0.063 cm³
Now let us find the required mass:
Mass = density * volume
Mass = 150 * 0.063
Mass = 9.45 kg
Therefore, the maximum mass that can hang without sinking from a 50.0 cm -diameter Styrofoam sphere in water is 9.45 kg.
To learn more about mass, refer: brainly.com/question/18386490
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Comment
The only reason you can do this is that the charges are the same. If they were not, the problem would not be possible.
Equation
The field equation is, in its simplest form,
E = kq/r^2
So each of the charges are pulling / pushing in the same direction. The equation becomes.
kq/r^2 - (-kq/r^2) = Field magnitude in N/C
Givens
- K = 9 * 10^9 N m^2 / c^2
- E = 45 N/C
- r = 7.5/2 = 3.75 cm * ( 1 m / 100 cm) = 0.0375 m
- Find Q
Solution
k*q/0.0375 ^2 - (-kq/0.0375^2) = 45 N/C Combine
2*k*q / 0.0375^2 = 45 N/C Divide by 2
kq /(0.0375^2) = 22.5 N/C Multiply by 0.0375^2
kq = 22.5 * 0.0375 ^2 Find d^2
kq = 22.5 * 0.001406 Combine
kq = 0.03164 N/C * m^2 Divide by k
q = 0.03164 N * m^2 /C / 9*10^9 N m^2 / c^2
q = 2.84760 * 10 ^8 C
I've left the cancellation of the units for you. Notice that only 1 C is left and it is in the numerator as it should be.
