Answer:
10.01 cm
Explanation:
Given that,
The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound traveling through a piece of fat tissue was 0.13 ms.
The average propagation speed for sound in body tissue is 1540 m/s.
We need to find the depth when the reflection occur. We know that, the distance is double when transmitting and arriving. So,
or
d = 10.01 cm
So, the reflection will occur at 10.01 cm.
1) Temperature change
2 ) exothermic release of energy
3) Endothermic absorption of energy
I hope that's help !
For this question place the object on the scale and move the slides to change the mass until it is level. That will tell you the mass.
<u>Answer:</u>
The following are the things we can learn about energy in roller coaster.
- All roller coasters work using the principle of gravitational energy.
- All roller coaster utilise the Potential energy.
- Roller coasters convert the potential energy into kinetic energy.
- Friction is reduced in roller coasters as it decreases the speed of roller coaster.
Roller coasters do not have engines whereas Gravity pulls them and potential energy gets converted into kinetic energy providing its motion. Due to the friction and air resistance, the energy gets reduced as the ride proceeds.
