Acceleration = force / mass.
A = 100/50 = 2 m/s^2 .
To solve this problem it is necessary to apply the concepts related to Newton's second law, the definition of density and the geometric relationships that allow us to find the volume of the figures presented.
For the particular case of the Cube with equal sides its volume is determined by


In the case of perforated material we have that its volume is given according to the cylindrical geometry, that is to say



In this way the net volume would be



We need to find the mass, but we have the Weight and Gravity so from Newton's second Law




PART A) From the relation of density as a unit of mass and volume we have to



PART B) To find the weight of the cube then we apply the ratio of




wavelength = d / number of Oscillation
this implies that wavelength = 30/3= 10
number of wavelengths = 10
Answer:
The charge flos through the coil is 0.023C
Explanation:
To solve this problem, it is necessary to apply the concepts related to Faraday's Law in which it is possible to calculate the emf Voltage induced due to a charge in a magnetic field
and Ohm's Law for the calculation of the current based on a given load over time.
Our data are given by:



Where
N is the number of loops, A the area and R the Resistance.
The change in magnetic field can be calculated as,


The Faraday's law of electromagnetic induction is given by definition as,

In the other hand Ohm's law says:


Equating both equations we have

We can re-arrange the equations to solve q, then



Therefore the charge flos through the coil is 0.023C