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1) An elastic cord is 63.9 cm long when a weight of 71.1 N hangs from it but is 88.9 cm long when a weight of 184 N hangs from it. What is the "spring" constant k of this elastic cord?
2) A small fly of mass 0.243g is caught in a spider's web. The web vibrates predominately with a frequency of 3.94 Hz. What is the value of the effective spring constant k for the web?
At what frequency would you expect the web to vibrate if an insect of mass 0.471g were trapped?
3) A pendulum has a period of 0.7421 seconds on Earth at sea level. (use g = 9.81 m/s^2) Calculate the change in the period of this pendulum if it were used at the top of Mt. Everest. (use g = 9.75 m/s^2)
when free from rest from this spot, the particle arrives at B with twice the speed it previously had, or 2vB. Find the potential at B.
a car heading north collides at an intersection with a truck heading east. if they lock together and travel 28 m.s at 46 degrees north of east just after the collision, how fast was the car initially traveling
Three moles of a monatomic ideal gas that is initially at a pressure of 1.50 * 10^5 Pa, How much work is done by the gas
Three equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.9 cm. A negative charge -18.00? C is placed on the fourth corner.
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
During an all-night cram session, a student heats up a one-half liter (0.50E-3 m^3) glass (Pyrex) beaker of cold coffee. How much coffee (in cubic meters) has spilled out of the beaker
A permanent dipole is at rest at origin of a coordinate system with a random orientation. What is the equilibrium orientation of the dipole
The car and minivan collide and stick together. Suppose the direction of the wreckage after the impact is 42.0° above the x axis.
Illustrate what is their culture according to leadership culture framework they have? Illustrate what is the leadership style in the organization? Illustrate what is their decision making style according to decision making framework?
Ultrasound reflected from an oncoming bloodstream that is moving at 22.0 cm/s is mixed with the original frequency of 3.00 MHz to produce beats
assume that for the couple in, you were told that the girl's mass was two-thirds that of the boy. The boy has a velocity of v = +0.61 m/s. What would be the girl's velocity in this case.
If there is a potential difference of V between the metal and the detector, what is the minimum energy that an electron must have
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