Friday
July 25, 2014

Homework Help: physics (3 seperate questions)

Posted by Anonymous on Monday, March 28, 2011 at 8:01pm.

1. A small fly of mass 0.26 g is caught in a spider's web. The web vibrates predominately with a frequency of 4.2 Hz. Find the effective spring stiffness constant k for the web. Hint: use natural frequency of oscillations formula.
N/m


2. At what frequency would you expect the web to vibrate if an insect of mass 0.52 g were trapped? Hint: use stiffness constant found in part 1. Hint: after the insect is trapped, the mass of the oscillator has increases by insect's mass, so the mass in the formula for natural frequency also has changed.

Hz

3. A spring scale being used to measure the weight of an object reads 12.8 N when it is used on earth. The spring stretches 4.95 cm under the load. The same object is weighed on the moon, where gravitational acceleration is
1/6g.

Find the reading of the spring scale on the moon.


Find the period for vertical oscillations of the spring on the moon.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A small fly of mass 0.26 g is caught in a spider's web. The web ...
Physics - A small fly of mass 0.26 is caught in a spider's web. The web vibrates...
Math - There are 3 spider webs. The 1st web is twice as large as the second web...
Biology - Can anyone help me with this one question that I'm stumped on? The ...
probl;em solving - in harry's attic there are three spider webs. the first web ...
San Sebastián - In Harry's attic there are. Three spider webs.the first web is ...
3rd grade Math - In Harry's attic there are 3 spider webs. The first web is ...
math - In Harry's attic there are three spider webs. The first web is twice as ...
Planning - What is the difference between Web 1.0 and Web 2.0? Web 1.0 is about ...
Math - A spider and a fly are in a room that has length 8 m, width 4 m, ...

Search
Members