Some earthquake waves, a cat’s purr, and elephant communications consist of ultrasonic waves.

Physics

2 answers:

Kobotan [32]3 years ago

7 0

The answer to your question is true.

slavikrds [6]3 years ago

3 0

True because when a can purrs thats basically saying the cat is happy and cats, elaphants among other animals can sence eartquakes from miles away

You might be interested in

What is the free-throw line used for?

Genrish500 [490]

Answer:

it be the second one lad

Explanation:

i have done the playing pf the basketball

5 0

3 years ago

What is a wave period?

Kamila [148]

A wave period is the time it takes to complete one cycle

I hope that's help:0

8 0

3 years ago

A bionic man running at 6.5 m/sec , east is acceleration at a uniform rate of 1.5 m/sec^2 east over a displacement of 100.0 m ea

tangare [24]

Given:
u = 6.5 m/s, initial velocity
a = 1.5 m/s², acceleration
s = 100.0 m, displacement

Let v = the velocity attained after the 100 m displacement.
Use the formula
v² = u² + 2as
v² = (6.5 m/s)² + 2*(1.5 m/s²)*(100 m) = 342.25 (m/s)²
v = 18.5 m/s

Answer: 18.5 m/s

5 0

3 years ago

A= v50cm-v20cm<br> __________________<br> t

andrezito [222]

Answer:

.....?

Explanation:

did i help? NO ok.

3 0

3 years ago

A heat engine has a maximum possible efficiency of 0.780. If it operates between a deep lake with a constant temperature of-24.8

Volgvan

Answer : The temperature of the hot reservoir (in Kelvins) is 1128.18 K

Explanation :

Efficiency of carnot heat engine : It is the ratio of work done by the system to the system to the amount of heat transferred to the system at the higher temperature.

Formula used for efficiency of the heat engine.

$\eta =1-\frac{T_c}{T_h}$