Answer:
B). f = 10.0 Hz
Explanation:
As we know the relation between frequency, wavelength and speed is given as
here we know that
now in order to find the frequency of the sound we can use above relation as
plug in all values in it
Explanation:
mass - 2kg
energy - 16 j
2
k.e- 1/2mv
2
16j=1/2×2×v
2
16×2/2=v
2
16=v
√16=v
V=4m/s
then momentum =mv
= 2×4
= 8 kgm/s
a. Technician A
b. Technician B
c. Both Technicians
d. Neither Technician
Answer:
c. Both Technicians
Explanation:
A steering wheel position sensor is being discussed. Technician A says that the sensor is used to determine the direction of the steering wheel. Technician B says that the sensor detects how fast the steering wheel is turned. the following are used to sense
Hall-effect, Photo cell, Potentiometer are used on vehicles equipped with an electronically controlled suspension
sensors are like indicators in a vehicle to give signals for both direction and the speed of the vehicle
c. Both Technicians
c. Kelvin s law.
b. Charles s law.
d. Dalton s law.
Before solving this question first we have to understand longitudinal wave and transverse wave.
A longitudinal wave is a wave in which the particles of the medium vibrate parallel to the direction of propagation of wave. In this type of wave one will notice compressions and rarefactions. Compressions are high pressure zones where the particles of the medium are close to each other . The rarefactions are low pressure zones where there will be large separation between particles.
A longitudinal wave is a repeated motion of compressions and rarefactions. The particle of the medium show a little displacement along the direction of wave.
A transverse wave is a wave in which the particle vibration is perpendicular to the direction of propagation of wave .In this type of wave one will notice crests and troughs.It is a repeated motion of crests and troughs.
Sound wave is a longitudinal wave. When it passes through air it forms rarefactions and compressions.
Hence from the above we get that out of the four options given in the question only option B is right which depicts that the air particles move parallel to the sound waves.
Answer:
D
Explanation: