It brings cold water from the bottom of the ocean.
<h3>right --- 20 + 10 = 30 N</h3>
<h3>left --- 10 N</h3>
<h3>resultant force --- 30 - 10 = 20 N</h3>
<h2>B. 20 N to the left</h2>
The sprinter’s average acceleration is 1.98 m/s²
The given parameters;
- initial velocity of the sprinter, u = 18 km/h
- final velocity of the sprinter, v = 27 km/h
- time of motion of the sprinter, t = 3.5 x 10⁻⁴ h
Convert the velocity of the sprinter to m/s;

The time of motion is seconds;

The sprinter’s average acceleration is calculated as follows;

Thus, the sprinter’s average acceleration is 1.98 m/s²
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<span>The answer is to place it in a magnetic field. </span>Using an existing magnet, you can magnetize everyday household items that contain iron, cobalt or nickel, which are metals that exhibit the property of ferromagnetism. Ferromagnetism is a subatomic property of some metals created by the structure of the electron clouds around the atoms. When the electrons of the metals align in a particular way, the metal produces a magnetic field.