Cell phones use radio waves to communicate. Radio waves transport digitized
voice or data in the form of oscillating electric and magnetic fields, called the
electromagnetic field (EMF). Some people claimed that cell phone use led to
brain cancer, why is this claim not supported by science? *
Waves do not displace matter
Waves transport matter
Waves increase matter
a O
Waves decrease matter
Answers: 3
Physics, 22.06.2019 04:30
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Physics, 22.06.2019 13:40
Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.
Answers: 1
Physics, 22.06.2019 21:30
A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.
Answers: 2
Cell phones use radio waves to communicate. Radio waves transport digitized
voice or data in the fo...
Mathematics, 16.02.2021 18:10
Mathematics, 16.02.2021 18:10
Mathematics, 16.02.2021 18:10
Chemistry, 16.02.2021 18:10
History, 16.02.2021 18:10
Mathematics, 16.02.2021 18:10
English, 16.02.2021 18:10
Chemistry, 16.02.2021 18:10
History, 16.02.2021 18:10
Mathematics, 16.02.2021 18:10
History, 16.02.2021 18:10