Answer:
B. t = 0.250s
Explanation:
A. An image with the sketch of the bat emitting a sound, which reflects on a surface and return to the bat is attached below.
B. In order to calculate the time that the pulse emitted by the bat, return to the bat, you first calculate the time that pulse takes to arrive to the object.
You use the following formula:
(1)
x: distance to the object = 43m
t: time = ?
v: speed of sound beat = 343 m/s
You solve the equation (1) for t:
The time on which the bat hears the echo is twice the value of t, that is:
The time on which bat heart the echo of its sound, from the moment on which bat emitted it, is 0.250s
Any item that sinks has a greater density then that of the surrounding liquids
The SI base units have the dimensions of: length, mass and time.
<h3>What are SI base units?</h3>
The SI base units are the internationally accepted system of units of fundamental quantities.
These SI base units consist of system of units of measurement starting with seven base units, which are as follows:
- second (s): the unit of time
- metre (m): The unit of length kilogram (kg): the unit of mass
- ampere (A): the unit of electric current
- kelvin (K): the unit oftemperature
- mole (mol.): the unit of amount of substance
- candela (cd):the unit of luminous intensity
Learn more about SI base units
brainly.com/question/4950932
In your question explains that an accelerometer is a device that uses the extension spring to measure acceleration in terms of Earth's Gravitational accelerations. So if this device is extended just 0.43 centimeters the possible accelerations is letter B. 0.80 g
Answer:
Alaska: Hydrokinetic Energy Campbell CR9000X used for in-stream hydrokinetic device evaluation. Marine hydrokinetic energy power generation is an emerging sector in the renewable energy portfolio. Hydrokinetic devices convert the energy of waves, tidal currents, ocean currents or river currents into electrical power.
