Heat = specific heat × mass × change in temperature
Specific heat = heat/ (mass×change in temperature)
Answer:
The bulk modulus of the liquid is 1.229 x 10¹⁰ Pa
Explanation:
Given;
density of liquid, ρ = 1400 kg/m³
frequency of the wave, f = 390 Hz
wavelength, λ = 7.60 m
The speed of the sound is given by;
v = fλ
v = 390 x 7.6
v = 2964 m/s
The bulk modulus of the liquid is given by;
where;
B is bulk modulus
B = (1400)(2964)²
B = 1.229 x 10¹⁰ N/m²
B = 1.229 x 10¹⁰ Pa
Therefore, the bulk modulus of the liquid is 1.229 x 10¹⁰ Pa
After 2.5 seconds of free fall, an item will be moving downhill at a speed of 25 m/s.Option D is correct.
<h3>What is velocity?</h3>
The change of displacement with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.
The given data in the problem is;
t(time)= 2.5 s
u(falling velocity)=0 m/sec
v(striking velocity)=? (m/sec)
Newton's first equation of motion:
v=u+at
v=u+gt
v=10 × 2.5
v= 25 m/s downward(+ ve taken as downward)
The velocity of an object that has been in free fall for 2.5 s will be 25 m/s downward.
Hence, option D is correct.
To learn more about the velocity refer to the link;
brainly.com/question/862972
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Answer:
I believe it is C.
Explanation:
I believe this because Scientist could not discover this without evidence.
And a law would not do anything but give them more reason to support the theory of plate tectonics.
And the seafloor could be a possible outcome but i know for a fact that scientist have a device that can go into earth's core to study the movements.
This is why i believe it is C.
Sorry if it is wrong im new to this.