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True or False
1. The fourth harmonic is four times the frequency of the fundamental.
2. A node is a position on a standing wave of minimum displacement
3. Frequency is inversely proportional to wavelength, wave speed constant
4. A standing wave is formed with two identical waves traveling in opposite directions
5. Constructive interference occurs when the phase dissimilarity of two otherwise identical waves is 2? or multiples thereof.
The science fiction writer Robert Heinlein once said, "If you can get into orbit, then you're halfway to anywhere." Justify this statement by comparing the minimum energy needed to place satellite into low Earth orbit (h=400km) to that needed to set ..
A tennis player swings her 1000 gram racket with a speed of 11.0 m/s. Find how fast is her racket moving immediately after the impact
A particle is located at r=(4.1i+3.1j+5.6k)m . A force F=(9.5j-3.5k)N acts on it. What is the torque, calculated about the origin
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, depositing their kinetic energy and breaking apart the tumor's DNA, thus killing its cells. For one patient, it is desired that 0.10 ..
A pipe is horizontal and carries oil that has a viscosity of 0.14 Pa s. The volume flow rate of the oil is 5.7 × 10-5 m3/s. What is the absolute pressure at the input end
A loop of width 0.2m and length 0.8m, and resistance 200ohms is pulled through a magnetic field of 0.4 T at 0.2 m/sec. What is force necessary to pull the loop
q1. light of wavelength 443 nm in air enters a fishbowl filled with water then exits through the crown glass wall of
if a hot reservoir of an engine is 300k and cold reservoir 200k, what is the carnot efficiency of this engine
A square loop (edge = 9.4 cm) is comprised of 41 turns of copper wire. The square loop is placed in the plane of the page, What is the magnitude of the induced emf in the square loop
The top of Mt. Everest is 8750 m above sea level. Assume that sea level is at an average Earth radius of 6.38×10^6 m. What is the magnitude of gravitational acceleration at the top of Mt. Everest? Mass of the Earth is 5.97×10^24 kg.
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
during heavy rain a section of a mountainside measuring 5.4 km horizontally perpendicular to the slope 0.40 km up along
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