1. in which medium does sound travel the fastest?
a. salt water
b. fresh water
c...
Physics, 24.08.2019 04:30 BLASIANNkidd
1. in which medium does sound travel the fastest?
a. salt water
b. fresh water
c. air
d. cast iron
2. a wave has a wavelength of 10 mm and a frequency of 5 hertz. what is its speed?
a. 50 mm/s
b. 50 hertz/s
c. 2 mm/s
d. 0.50 mm/s
3. how does reflection differ from refraction and diffraction?
a. reflection is the only process in which the wave does not continue moving forward.
b. reflection is the only process that involves a change in the wave.
c. reflection affects all types of mechanical waves, but refraction and diffraction do not.
Answers: 2
Physics, 22.06.2019 05:00
Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?
Answers: 2
Physics, 22.06.2019 05:10
What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
Answers: 2
Physics, 22.06.2019 12:30
Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.
Answers: 1
Physics, 22.06.2019 17:30
Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?
Answers: 3
Mathematics, 26.06.2020 15:01
English, 26.06.2020 15:01
Social Studies, 26.06.2020 15:01
Mathematics, 26.06.2020 15:01
Mathematics, 26.06.2020 15:01
Computers and Technology, 26.06.2020 15:01
Biology, 26.06.2020 15:01