Knajajackson885 Knajajackson885

01-04-2020
Physics

contestada

1. A popular baby toy is called a "Johnny Jump Up." The Johnny Jump Up is a seat that a 12 month old would sit it. The seat is attached to a long spring that is connected to the frame of a door. If a 10kg baby bobs up and down with a frequency of 0.67 Hz, what is the spring constant of the spring in the Johnny Jump Up?

Respuesta :

02-04-2020

Answer:177.26 N/m

Explanation:

Given

mass of boy [tex]m=10\ kg[/tex]

frequency [tex]f=0.97\ Hz[/tex]

For spring mass system frequency is given by

[tex]f=\frac{1}{2\pi }\sqrt{\frac{k}{m}}[/tex]

where k=spring constant

[tex]0.97=\frac{1}{2\pi }\times \sqrt{\frac{k}{10}}[/tex]

[tex]k=(2\pi \cdot 0.67)\times 10[/tex]

[tex]k=177.26\ N/m[/tex]

Answer Link

Otras preguntas

Let c be the curve of intersection of the parabolic cylinder x2 = 2y, and the surface 3z = xy. find the exact length of c from the origin to the point (2, 2, 4/

Usually the flood season produced a “good Nile,” just the right amount of water. What might be the consequence of a “bad Nile” – too much or too little water?

At aspen? electronics, the parking spots nearest the front door are reserved for the? "employee of the? month." which aspect of organizational culture does this

When the beam makes an angle of 40 degrees with the ground, the top of the beam is 8 feet above the ground  There are telephone wires nearby and the workers ar

The phase of the presidential election process in which the political parties select candidates to run against other party candidates is called the ____________

Consistent with the premises of strain theory, research finds that juvenile delinquency and gang membership is primarily caused by

find x so that a is parallel to b. (4x+11) , (8x+1)

Why would a reader research the author as part of the pre-reading process? To evaluate the validity of the information To increase interest in the topic

The staff nurse, in the tenth hour of a 12-hour shift, is told by the house supervisor that the nurse replacement will be 2 hours late and the staff nurse must

What best describes the motivation for the space race? A.the international outcry for economic progress. B. the desire for political and millitary dominance. C.