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If a simple pendulum of length 2.09 meters is subjcted to a restoring force of 3 Newtons when displaced .15546 meters from equilibrium, what is the mass of the pendulum? What will be its period of oscillation?
A curve with a 140 radius on a level road is banked at the correct angle for a speed of 20 . If an automobile rounds this curve at 30 , what is the minimum coefficient of static friction between tires and road needed to prevent skidding.
Slopping air track: A glider moves frictionlessly along an air track that has been tilted by 1.5 inches over a span of 1.00 meters. What is the expected acceleration of the glider
An infinitely long, uniformly charged line of charge with linear density lamda = .1 C/m lies a distance of .68 m from the center of a sphere with radius .23 m, What is the amount of charge inside the sphere
Two non conservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the transform in the car's kinetic energy, ΔKE = KEf - KE0, from A to B.
A ceiling fan with 80-cm-diameter blades is turning at 60rpm. Suppose the fan coasts to a stop 30s after being turned off.
A person takes in a breath of 10!C air and holds it until it warms to 37.2!C. The air has an initial volume of 0.73 L, find the work done by the air on the lungs
Two point charges are on the y axis. A 3.80-µC charge is located at y = 1.25 cm, and a -2.18-µC charge is located at y = -1.80 cm. Find the total electric potential at the origin
A rope applies a horizontal force of 193 N to pull a crate a distance of 1.89 m across the floor. What is the work done by the frictional force
The mass of Mercury is 0.0550 times that of earth, and its radius is 0.380 times that of earth, Calculate the average density of Mercury (in kg/m3) given the earth's density is 5.52×103 kg/m3
A string 0.5 m long with mass density 0.0003 kg/m and is vibrating 200 cycles per second. What hanging mass would produce this tension
If electrons are accelerated from rest in an electron gun by sending them through a potential difference of 11.0 kV
A small earthquake starts a lamppost vibrating back and forth. What is the time constant for the damping of the oscillation
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