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Sedaia [141]
3 years ago
8

Is this object showing acceleration for the first 2 seconds? explain your answer.

Physics
1 answer:
iVinArrow [24]3 years ago
3 0
Yes. The line is increasing. The flat line at the top of the graph is where there is not acceleration and the decreasing line is deceleration.
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A heavy frog and a light frog jump straight up into the air. They push off in such away that they both have the same kinetic ene
Ilia_Sergeevich [38]

Answer:

The lighter frog goes higher than the heavier frog.

The lighter frog is moving faster than the heavier frog

Explanation:

If both frogs have the same kinetic energy when they leave the ground, the following equality applies:

K(light) = K(heavy) = \frac{1}{2} *ml*vol^{2} = \frac{1}{2}*mh*voh^{2}

Now, if the only force acting on the frogs is gravity, when they reach to the maximum height, we can apply the following kinematic equation:

vf^{2} -vo^{2} = 2*a*hmax = vf^{2} -vo^{2} = 2*(-g)*hmax

When h= hmax, the object comes momentarily to an stop, so vf =0

Solving for hmax:

hmax =\frac{vo^{2} }{2*g}

As the lighter frog, in order to have the same kinetic energy than the heavier one, has a greater initial velocity, it will go higher than the other.

As a consequence of both having the same kinetic energy, the lighter frog will be moving faster than the heavier frog.

5 0
3 years ago
a weather balloon slowly expands as energy is transferred as heat from the outside air. if the average net pressure is 1.5×10^5m
Alexxx [7]
There is only one pressure this situation would be a "constant pressure" process
3 0
4 years ago
Read 2 more answers
In major league baseball, the pitcher's mound is 60 feet from the batter.If a pitcher throws a 89 mph fastball, how much time el
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3 years ago
A heating curve is a graph that shows the temperature change of a substance as
harkovskaia [24]

Answer:

This statement is true, a heating curve is a graph that shows the temperature change of a substance as thermal energy is introduced.

4 0
2 years ago
Liam is two-years old. His mother is concerned about his behavior. Liam is very different from how his sister Briana was when sh
slavikrds [6]

Answer:

Autism

Explanation:

Those are some symptoms of autism that you described

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