a) standing wave
Ais described as a wave that is not confined to the space along the medium
a) standing wave
b) traveling wave
c) tsunami
d) breaking wave
what type of wave appears to vibrate in place?
a) breaking wave
b) standing wave
c) traveling wave
d) tsunami
if two waves with identical crests and troughs meet, what is happening?
a) the wave is breaking
b) the wave is reflecting
c) destructive interference in occurring
d) constructive interference is occurring
which of the following is the best definition of a longitudinal wave?
a) in a longitudinal wave, particle displacement is parrallel to the direction of the wave motion
b) in a longitudinal wave, particle displacement is perpendicular to the direction of wave motion
c) in a longitudinal wave, particle displacement is above the direction of wave motion
d) in a longitudinal wave, particle displacement is opposite to the direction of wave motion
what is a compression?
a) region of low pressure in a medium caused by a passing wave
b) region of zero pressure in a medium caused by a passing wave
c) region of high pressure in a medium caused by a passing wave
d) region of high altitude in a medium caused by a passing wave
a mechanical wave is a wave that its energy
a) does require a medium to transfer
b) does not transfer
c) does not require a medium to transfer
which of the following statements best describes wavelengtth?
a) wavelength is the same as pitch
b) wavelength is the length of two complete wave cycles
c) wavelength is the length of one complete wave cycle
d) wavelength is the speed at which a wave travels
Answers: 1
Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 23.06.2019 10:30
Up of elements with the same number of valence electrons. vertical column in the periodic table of elements such as alkali metals or halogens. a horizontal row of elements in the periodic table. this is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table. periodic trend these are the highly reactive elements located in group 1 of the periodic table. these elements have one electron in their outer energy level which makes them highly reactive with water and halogens. these are the reactive elements located in group 2 of the periodic table. these elements have two electrons in their outer energy level which makes them reactive with water and halogens. alkaline earth metals these are the group 3 or d-block elements. these dense metals with high boiling points can have different oxidation states and all are solid at room temperature with the exception of mercury. transition metals this is the highly reactive family of elements with 7 valence electrons. this is an element with full valence shell, very unreactive. this is a group of elements with few valence electrons that conducts heat and electricity. one of a class of elements having properties intermediate to metals and nonmetals. this is a type of element that has many valence electrons, not a conductor.
Answers: 1
Physics, 23.06.2019 15:30
Acar is moving with a speed of 22 m/s the driver then brakes and the car comes to a halt after 6.5 s . what is the distance covered by the car after the driver breaks , until it comes to a stop
Answers: 1
Ais described as a wave that is not confined to the space along the medium
a) standing wave
a) standing wave
Mathematics, 22.01.2021 16:20
Mathematics, 22.01.2021 16:20
Mathematics, 22.01.2021 16:20
English, 22.01.2021 16:20
Social Studies, 22.01.2021 16:20
Mathematics, 22.01.2021 16:20
English, 22.01.2021 16:20
Mathematics, 22.01.2021 16:20
Chemistry, 22.01.2021 16:20
World Languages, 22.01.2021 16:20
Spanish, 22.01.2021 16:20
Mathematics, 22.01.2021 16:20