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oksano4ka [1.4K]
4 years ago
14

Sound travels at approximately 1,500 m/s in sea water. How far will a sonar pulse travel in 90 s?

Physics
1 answer:
pav-90 [236]4 years ago
7 0

Answer:

135,000 m

Explanation:

(1500 m/s) (90 s) = 135,000 m

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If the air temperature is greater than the surface (water or land) temperature, there will be a net transfer of thermal energy f
ruslelena [56]

The thermal energy will be transferred from the air to the surface. Hence, the answer is false.

Thermal energy can be transferred from higher temperatures to lower temperatures. It is obey the second law of thermodynamics

"At a very microscopic level, it simply says that if you have a system that is isolated, any natural process in that system progresses in the direction of increasing disorder, or entropy, of the system."

It means that heat energy transferred from the higher temperature and the lower temperature states will absorb heat energy from the surrounding. The thermal energy will be transferred through conduction, convection, or radiation.

Find more on thermal energy at: brainly.com/question/7541718

#SPJ4

7 0
1 year ago
A 1750-kilogram cars travels at a constant speed of 15.0 meters per second around a horizontal, circular track with a radius of
bulgar [2K]

m = mass of the car moving in horizontal circle = 1750 kg

v = Constant speed of the car moving in the horizontal circle = 15 m/s

r = radius of the horizontal circular track traced by the car = 45.0 m

F = magnitude of the centripetal force acting on the car

To move in a circle . centripetal force is required which is given as

F = m v²/r

inserting the above values in the formula

F = (1750) (15)²/(45)

F = (1750) (225)/(45)

F = 1750 x 5

F = 8750 N

6 0
3 years ago
If a force of 12 N is applied to an object
Varvara68 [4.7K]

Answer:

<h3>The answer is 3 kg</h3>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{12}{4}  \\

We have the final answer as

<h3>3 kg</h3>

Hope this helps you

6 0
3 years ago
Pls help me with this fast. I will mark brainiest
denis23 [38]

Answer:

a) 70, 95

b) 95-70= 25cc

c) density= mass/volume

102/25

=4.08g/cc

5 0
3 years ago
Rope BCA passes through a pulley at point C and supports a crate at point A. Rope segment CD supports the pulley and is attached
RUDIKE [14]

Answer:

Wmax = 63.65 ≈ 64 lb

Explanation:

6 0
3 years ago
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