Standing Waves on a String: A string of linear density 1.5 g/m is under a tension of 20 N. What should be its length if its fundamental resonance frequency is 220 Hz?
A. 0.26 m
B. 0.96 m
C. 1.1 m
D. 1.2 m
Answer: A
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A 2-m long wire is carrying a current of 2 A. The wire is placed at an angle of 60° with respect to a magnetic field. If the wire experiences a force of 0.2 N, what is the strength of the magnetic field?
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The horizontal component of the velocity of a projectile remains constant during the entire trajectory of the projectile
Indicate whether the statement is true or false
In an experiment to measure the thermal conductivity of a certain material, a slab of material 10.0 mm thick separates a steam chamber from a block of ice with a square cross-section of 8.00 cm × 8.00 cm
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