What the question for this assessment
Sea and land breezes are caused because the land heats and
cools more quickly than the water. The correct option for the given question is
option “b”. A sea breeze is a breeze that blows from the sea to the land. The
land becomes coo quicker than the sea resulting in the sea breeze. A land
breeze is caused during the day when the land is hotter than the sea. The hot
air blows from the land towards the sea.
The work that Sam should do in order to stop is the boat is the same as that of the kinetic energy of the object in order to counter its motion. Kinetic energy is calculated through the equation,
KE = 0.5mv²
where KE is kinetic energy, m is mass, and v is the velocity.
Substituting,
KE = 0.5(1200kg)(1.2 m/s)²
<em>KE = 864 J</em>
No, it will not fall. The pencil will remain at zero speed relative to the spacecraft and will orbit the earth with the spacecraft.
