If you increase the linear mass density of a rope, the speed of a wave on the rope also increases
a. True
b. False
Indicate whether the statement is true or false
False
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Intensity: A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions. What is the amplitude of the magnetic field of this light at a distance of 0.700 m from the bulb?(?0 = 8.85 × 10-12 C2/N ? m2, ?0 = 4? × 10-7 T ? m/A, c = 3.0 × 108 m/s)
A. 1.76 × 10-7 T B. 2.02 × 10-7 T C. 2.22 × 10-7 T D. 2.86 × 10-7 T
Two compressible solids are formed into spheres of the same size. The bulk modulus of sphere two is twice as large as the bulk modulus of sphere one
You now increase the pressure on both spheres by the same amount. As a result of the increased pressure, how is the change in volume of sphere two related to the change in volume of sphere one ? A) ?V2 = 2?V1 B) ?V2 = 4?V1 C) ?V2 = ?V1 D) ?V2 = 1/2?V1 E) ?V2 = 1/4?V1
Suppose your normal resting heart rate is 60 beats per minute. Now, suppose you board a spaceship that travels away from Earth at 90% of the speed of light. While on the ship, you measure your heart rate. What will it be?
A) It will be 46 beats per minute. B) It will be 74 beats per minute. C) It will still be 60 beats per minute. D) It will be 12 beats per minute.
A loop containing N identical resistors includes a battery with an emf of 10 V. If we start the loop at the battery's negative terminal, proceed through the battery and then through the resistors back to the negative terminal of the battery, the potential difference across each resistor and the number of resistors could be
1.3 resistors, –7 V 2.5 resistors, 2 V 3.9 resistors, 1 V 4.2 resistors, –5 V