what is the speed of wave if the frequency is 50HZ and wavelength is 4000000nm? * 20mm/s 2m/s 2000000nm/s 0.02m/s 200µm/s 20cm/s

Calculate the frequency of violet light, Wavelength= 680 nm Speed of light = 3*10⁰ m/s.

Block A rests on a horizontal tabletop. A light horizontal rope is attached to it and passes over a pulley, and block B is suspended from the free end of the rope. The light rope that connects the two blocks does not slip over the surface of thè pulley (radius 0.080 m) because the pulley rotates on a frictionless axle. The horizontal surface on which block A (mass 3.70 kg) moves is frictionless. The system is released from rest, and block B (mass 6.00 kg) moves Part A What is the tension force that the rope exerts on block B? downward 1.80 m in 2.00 s. Express your answer with the appropriate units. HÁ TB = Value Units Submit Request Answer Part B What is the tension force that the rope exerts on block A? Express your answer with the appropriate units. HẢ 王新 TA= Value Units

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Please solve and answer the question correctly please. Be sure to give the correct units and answers. Thank you!!

AM 100m Electromagnetic Spectrum FM TV Radio waves 1m Radar 1cm TV Remote Infrared 0.01cm Light Bulb 1000nm O Lightning has more energy than the radio because gamma rays have a longer wavelength. Ⓒ Lightning has less energy than the radio because gamma rays have a shorter wavelength. O Lightning has more energy than the radio because gamma rays have a shorter wavelength. O Lightning has less energy than the radio because gamma rays have a longer wavelength. Sun Ultraviolet 10nm X-ray machine X-rays Building Size Lightning contains gamma rays. Based on the position of gamma rays in the electromagnetic spectrum, does lightning have more or less energy than a radio? Radioctive Elements wwwwwwwwww Gamma rays VISIBLE SPECTRUM 0.01nm 0.0001nm Atom Size

A light wave and sound wave travelling through air both have the same frequency (4000Hz). Which wave has the bigger wavelength, or are they the same? Explain ( sound wave travel through air at 340  m/s)

f the longth an gfen þepe Then the fecegueney of feth alalond 33,3 cm, Vsunt 333 m. 3000HZ (b 250042 © Icoo Hz 0 1250 12

(a) A moving neutron has a wavelength of 5.29 x 10-/ m. What is its speed (in m/s)? m/s (b) A neutron moves with a speed of 8.30 x 10° m/s. What is its wavelength (in m)? m

Calculate the wavelengths of the following objects. A 75 kg athlete running a 3.0-minute mile:      m    Earth (mass = 6.0 ×× 1027 g) moving through space at 2.5×104  m/s:     m