Ball and Socket joints allow for the greatest range of motion.
Answer:
Explanation: light waves against itself, which leads to internal interference of different wave component Which is also referred to as diffraction.
Diffraction causes beam of light to slowly spread out as it travels, so that some of the light will bend away from a straight line motion of the main part of the wave
The whole question isn't shown so we cant answer it.
(a). If the temperature of a substance is increased the density of it will also increased. The temperature is directly proportional to the density because the molecular activity of the substance will be affected by the temperature
(b).The mass of the substance doesn't at all. Because the amount of matter inside the substance cannot be affected by the temperature except that its water
Answer:
The ratio of initial to final speed of sound is given as 1.28.
Explanation:
As per the thermodynamic relation of isentropic expansion
Here
is the pressure at point 1 which is given as 2.2 MPa
is the temperature at point 1 which is given as 77 °C or 273+77=350K
is the pressure at point 1 which is given as 0.4 MPa
is the temperature at point 2 which is to be calculated- k is the ratio of specific heats given as 1.4
Substituting values in the equation
As speed of sound c is given as
for initial to final values it is given as
As values of k and R is constant so the ratio is given as
Substituting values give
So the ratio of initial to final speed of sound is 1.28.
