Density
DENSITY is the similar factor that contributes to the formation of surface currents and deep currents.
Explanation:
While salinity and temperatures affected ocean currents, they do so by affecting one property of the ocean waters that form the deep water and surface water currents. This is density. The warmer the oceans waters, the less dense they become hence they upwell to become surface currents (and vice versa). The more concentrated, with salts, the ocean waters are, the denser they become hence sink to become deep oceans currents (and vice versa).
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Doubling the size of a load resistor increases the load current. Increasing the load resistance, in turn the total circuit resistance is reduced. The load current would not be half as much since when you increase the size of load resistor then load current increases.
-- While gaining 2.15 m/s more speed every second, the van
would gain (2.15 x 7) = 15.05 m/s more speed in 7 seconds.
-- We're told that its speed at the end of the 7 seconds
is 20 m/s .
-- So its speed at the beginning of the 7 seconds must have been
(20 m/s - 15.05 m/s) = 4.95 m/s .
Answer:
See Explanation
Explanation:
Whenever a force is applied in an object in the opposite direction of its motion. It tends to slow down the speed of the object. Therefore, this force is called the decelerating force and the acceleration produced by it is called deceleration.
The deceleration produced in this case by this decelerating force has a direction opposite to the direction of motion or velocity of the object. Therefore, this deceleration is defined with a negative sign along with its magnitude.
<u>Due to this opposite direction, term negative acceleration is also used instead of deceleration.</u>