Answer:
0.07°C
Explanation:
<u>solution:</u>
the speed of a sound in water is<u>:</u>
v(T)=1480+4(T-4°C)
<u>at 4°C the travel time is:</u>
t(4◦C) = (
7600 × 103 m
)
/ (1480 m/s) = 5202.7 s
<u>5°C, the travel time is:</u>
t(5◦C) = (
7600 × 103 m
)
/ (1484 m/s) = 5188.7 s
<u>one degree C corresponds to a ∆t of 14 s so temperature difference is:</u>
ΔT=1 s/14 s=0.07◦C
 
        
             
        
        
        
Two terminal device which can maintain a fixed voltage. Hope this help I need more detail in your question this is all I can provide. :)
        
             
        
        
        
The quantity of matter in a body regardless of its volume or of any forces acting on it.
        
             
        
        
        
Answer:
B = 62.9 N
Explanation:
This is an exercise on Archimedes' principle, where the thrust force equals the weight of the  liquid 
          B = ρ g V
write the equilibrium equation 
          T + B -W = 0
          B = W- T               (1)
 use the density to write the weight
          ρ = m / V
         m = ρ V
          W = ρ g V
 substitute in  1
          B = m g -T
          B =  g V - T
 g V - T
To finish the calculation, the density of the material must be known, suppose it is steel  \rho_{body} = 7850 kg / m³
 calculate
          B = 7850 9.8 1.20 10⁻³ - 29.4
           B = 92.3 - 29.4
           B = 62.9 N
 
        
             
        
        
        
Answer:
The common velocity v after collision is 2.8m/s²
Explanation:
look at the attachment above ☝️