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A violinist is tuning the A string on her violin by listening for beats when this note is played simultaneously with a tuning fork of frequency 440 Hz. She hears a beat frequency of 4 Hz. She notices that, when she increases the tension in the string slightly, the beat frequency decreases. What was the frequency of the mistuned A string?
A 10 m beam of mass 340 kg extends over a ledge. The beam is not attached, but simply rests on the surface. How far from the edge of the ledge can the beam extend
A roller coaster goes 26 m along a section of track sloping 10 degrees below the horizontal, followed by a 15-m section sloping upward at 6 degrees, followed by an 18-m section of level track. Find the net displacement.
An infinite slab of conducting material with a thickness of 2d lies in the x-y plane between z = -d and z = d. Use Gauss' law to calculate the electric field inside the slab
Determine the average speed for the trip
Arranged on the floor are five concrete blocks, each 28.4kg and 0.265m tall. What is the minimum work required to stack all five vertically
Consider a 3.0 ball and a 5.4 ball in free fall. what is the net force acting on each
A 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 N/m. In the list below are described 5 situations. In some of the situations, mass is at rest and remains at rest. In other situations, at the ..
You are given an ideal air-filled parallel plate capacitor with plates of area 45.0 cm2 and separation 2.10 mm. What is the new value of the capacitance
A hill that has a 25.7% grade is one that rises 25.7 m, At what angle is such a hill inclined above the horizontal
Three deer, A, B, and C, are grazing in a field. Deer B located 64.00 m from dear A at an angle of 50° north of west. Deer C is located 76° north of east relative to dear A. The distance between deer B and C is 93m. What is the distance between de..
q1. in a head-on collision a car stops in 0.27 from a speed of 12. the driver has a mass of 76 and is fortunately
A 36g glass thermometer reads 20.6C before it is placed in 104mL of water. What is the original temperature of the water
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