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sdas [7]
3 years ago
7

which of the following drives the movement of convection currents A. pressure differences B. density differences C. volume diffe

rences 
Physics
2 answers:
AlekseyPX3 years ago
8 0
Convection currents are driven by the buoyancy
that results from density differences.
ozzi3 years ago
5 0
I'd go with B. density differences but don't hold me to that :-)

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You walk for a speed of 1.1 m/s (meters per second) for 6.0 seconds and
castortr0y [4]

Answer:

Average speed, As = 2.2 [m/s]

Explanation:

To solve these types of problems we must remember that the average of the speeds is determined by dividing the distance over time.

With the first speed and the time of 6 [s] we can calculate the distance.

V = x/t

where:

x = distance [m]

V = velocity = 1.1 [m/s]

t = time = 6 [s]

x1 = V*t

X1 = 1.1*6

X1 = 6.6 [m]

Now with the second velocity and  6 [s], we can calculate the second distance.

X2 = 3.3*6

X2 = 19.8 [m]

Now we have to calculate the average speed. The total distance is x = x1 +x2

X = 19.8 + 6.6 = 26.4 [m]

and the total time is 12 [s]

Therefore:

As = 26.4/12

As = 2.2 [m/s]

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3 years ago
There are screws all around you. Name five examples of screws that you see in everyday life? Think broadly!
Ira Lisetskai [31]

Answer:

Some examples of the uses of a screw are in a jar lid, a drill, a bolt, a light bulb, faucets, bottle caps and ball point pens.

Explanation:

3 0
3 years ago
1. A change in an object's speed has a(n) _________ effect on its kinetic energy than a change in its mass.
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4 0
3 years ago
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Force required to accelerate 10 kg object to 5.9 m/s/s ?

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3 years ago
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