How are electromagnetic waves different from mechanical waves?
Question 1 options:
Elec...
Physics, 09.02.2021 20:00 Tyrant4life
How are electromagnetic waves different from mechanical waves?
Question 1 options:
Electromagnetic waves travel through water; mechanical waves can only travel through solid matter
Electromagnetic waves need a medium to travel through; mechanical waves do not
Electromagnetic waves are long chains of vibrating molecules; mechanical waves aren't
Electromagnetic waves can travel through empty space; mechanical waves can not
Answers: 1
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Select the word from the list that best fits the definition classification of most stars on the h-r diagram
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World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s
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Physics, 22.06.2019 10:00
This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !
Answers: 1
Physics, 22.06.2019 11:00
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
Answers: 1
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