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1. A mass-spring system oscillates with period of 0.23 sec. The spring's spring constant k = 450 N/m. What mass is attached to the spring?
2. A 150-gram mass on an ideal spring oscillates 96 times in one minute. If an additional 100 grams is added to the system, what will be the oscillation frequency?
3. A pendulum consists of a 475-gram mass suspended from a light string of length 1.5 m. What is the frequency of oscillation?
4. A 1.9-kg rope of length 5.2 m is stretched tightly between two posts. It is observed that a disturbance induced on one end of the rope takes 0.31 sec to traverse the rope and come back. What is the tension in the rope?
A chair of mass 13.0kg is sitting on the horizontal floor; the floor is not frictionless, Use Newton's laws to calculate the normal force that the floor exerts on the chair
A mover's dolly is used to deliver a refriger- ator up a ramp into a house. What gravitational potential energy is gained by the refrigerator
If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.
A virtual object is located to the right of a diverging lens whose focal length is -f cm. Find the distance of the image of the virtual object measured with respect to the the lens
A 5.2 x10^2-newton girl takes 10. Seconds to run up two flights of stairs to a landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
You are given three capacitors, with capacitances 0.0075 µF, 12000 pF, and 0.029 µF, what is the maximum and the minimum voltage difference would they make when charged to 130 µC
Water flows in a pipe that has a 4 ft diameter and the following hypothetical velocity distribution: what is the discharge in cubic feet per second
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
Find out the minimum values of m1 and m2 such that the overlapping of the bright fringes will occur and find position of the overlap on screen.
When a potential difference of 166 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 32.0 nC/cm2. What is the spacing between plates.
A sound wave with intensity 4 mW/m2 interferes destructively with a sound wave that has an intensity of 13 mW/m2
A helicopter rises vertically with a constant upward acceleration of 0.38 m/s^2. How soon does the wrench hit the ground
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