2 years ago

On a position vs. time graph for an object, a horizontal line segment indicates that the object is(1 point)

1 answer:

7 0

Answer:

moving at a constant rate. (could be zero m/s)

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likoan [24]

Acceleration = (change in speed) / (time for the change)

Change in speed = (end speed) - (start speed) = (15 m/s - 7 m/s) = 8 m/s

time for the change = 2 minutes = 120 seconds

Acceleration = (8 m/s) / (120 seconds)

Acceleration = 0.067 m/s²

7 0

3 years ago

wariber [46]

2NO2 means that there is 2 oxygen atoms and one nitrogen with two sets of that. So its the third one

3 0

3 years ago

Vinvika [58]

Answer:

Option C

100 J

Explanation:

Kinetic energy, KE is given by

$KE=0.5mv^{2}$ where m is the mass and v is the velocity

Substituting 50 Kg for mass, m and 2 m/s for velocity v then we obtain

$KE=0.5*50*2^{2}=100 J$

Therefore, the child's kinetic energy is equivalent to 100 J

6 0

3 years ago

IgorC [24]

Answer:60mph

Explanation:

4 0

3 years ago

JulijaS [17]

The answer is definitely C.) their molecules move at the same average speed

3 0

3 years ago