Answer:
Explained below
Explanation:
Beats are interference pattern between two sounds of slightly different frequencies perceived as periodic vibration in volume whose rate is difference of the two.
Both octave and decibel are the terms of measurement.
Octave(In electronics) is a logarithmic unit for ratio between frequencies,with one octave corresponding to doubling of frequency. For example frequency one octave is from 40 Hz to 80 Hz.
Whereas decibel is a unit of sound intensity. It is one-tenth of A bel. In electronics it is used measure power level of an electrical signal by comparing it with given level of logarithmic scale.
Answer:
b) False
Explanation:
Work done by a system is not a property because it doesn't define the system's state. Work is mechanical energy exchanged across the system's boundaries.
Answer:
The correct option is: 2. Propane
Explanation:
Minimum ignition energy, abbreviated as MIE, is the minimum energy required to ignite the flammable mixture of air at atmospheric pressure and room temperature. The unit used to measure this energy is millijoule, mJ
The values of the minimum ignition energy for the following gases are:
Butane = 0.25 mJ
Propane = 0.26 mJ
Ethylene = 0.07 mJ
Hydrogen = 0.017 mJ
Cyclohexane = 0.22 mJ
<u>Therefore,among the following gases, Propane requires the most ignition energy, 0.26 mJ. </u>
Answer:
a) 25.54 lb
b) No change
Explanation:
m = Mass of astronaut = 150 lbm
Weight of astronaut on earth = Mass × acceleration due to gravity on earth
= 150×32.18
= 4827 lbf
Weight of astronaut on moon = Mass × acceleration due to gravity on moon
= 150×5.48
= 822 lbf
a) On earth the mass in the spring scale shows 150 lbm because it is calibrated according to the acceleration due to gravity on earth. So, the weight of the astronaut shown on moon will be
Weight of astronaut on moon/acceleration due to gravity on earth
= 25.54 lb
b) Beam scale shows weight by comparing masses so there will be no change displayed on the beam scale.
Answer:
D
Explanation:
the way vertices are connected may be different so having same number of edges do not mean that total degree will also be same.