Physics, 21.10.2020 22:01 CobyHageman
ProblemsShow equation, work, final answer with correct units.
1. What is the wavelength of a sound wave with a frequency of 50 Hz? (Speed
of sound is 342 m/s)
2. A sound wave in a steel rail has a frequency of 620 Hz and a wavelength of
10.5 m. What is the speed of sound in steel?
3. Determine the frequency of a microwave 6.0 cm in length. (A microwave is an
electromagnetic wave. It travels through space at a speed of 3.0 x 10^8
m/s
4. What is the period of the microwave in problem 3?
Answers: 1
Physics, 22.06.2019 05:30
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 23:00
Identify the type of heat transfer occurring when chocolate melts in your hand
Answers: 1
Physics, 23.06.2019 03:30
One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.
Answers: 1
ProblemsShow equation, work, final answer with correct units.
1. What is the wavelength of a sound...
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