Build a computational model of a simple hanging harmonic oscillator using the Euler method. Use realistic values for the parameters (i. e., � and � such that the period is reasonable). Assume the mass of the spring is negligible compared to the attached mass, and that the harmonic oscillator has been stretched vertically downward a distance �!, relative to its hanging equilibrium position and released from rest. Produce graphs of the position and velocity of the mass as a function of time, and compare these with the exact functions for the position and velocity, �(�) = �!cos)*� � �- and �(�) = −*� � �!sin)*� � �-, that result from solving Newton's 2nd law analytically. Does the angular frequency match that expected for a simple harmonic oscillator of mass � and spring constant �?

hope it

answer: a ball

explanation: because it will bounce

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards