It is C, gasses with less kinetic energy, i did this and i think i remember it was C
It's true
work measure by joule.
Energy = work/time
= joule/s .
and joule/s represents watt
<h3>Three types of AC circuits are:</h3>
- Active
- Reactive
- Apparent power
<h3>Examples of instruments that use AC circuit:</h3>
- Thermocouple
- Hot wire ammeter
- Wattmeter
<em>Their pics are also attached!!~</em>
The right answer for the question that is being asked and shown above is that: "A. Machines increase the amount of force required to do a task. " The statement that is true about machines is that <span>A. Machines increase the amount of force required to do a task. </span>
Answer:
<h2>
14.66secs</h2>
Explanation:
Given the formula for calculating the depth in metres expressed as
depth in meters = ½ (1500 m/sec × Echo travel time in seconds)
Given depth of the challenger = 10, 994 meters, we will substitute this given value into the formula given to calculate the time take for the echo to travel.
10, 994 = depth in meters = ½ * 1500 m/sec × Echo travel time in seconds
10,994 = 750 * Echo travel time in seconds
Dividing both sides by 750;
Echo travel time in seconds = 10,994 /750
Echo travel time in seconds ≈ 14.66secs (to two decimal places)
Therefore, it would take an echo sounder’s ping 14.66secs to make the trip from a ship to the Challenger Deep and back