Question

1. ms. overinaker wanted to drop a 0.5kg water balloon on a students head as they arrived to school. she stood on the roof and held the balloon a total of 4.2 meters above the ground. how much potential energy did the balloon have? 10. put the objects in #6 - 9 (potato, iphone, roller coaster and water balloon) in order from least to greatest potential energy.

Explanation:

Step1: Identify the formula

The formula for gravitational - potential energy is $PE = mgh$, where $m$ is the mass, $g$ is the acceleration due to gravity ($g = 9.8\ m/s^{2}$), and $h$ is the height.

Step2: Identify given values

The mass of the water balloon $m = 0.6\ kg$ and the height $h = 4.2\ m$.

Step3: Calculate potential energy

Substitute the values into the formula: $PE=mgh=(0.6\ kg)\times(9.8\ m/s^{2})\times(4.2\ m)$.
$PE = 0.6\times9.8\times4.2\ J=24.696\ J$.

For question 10, without information about the mass and height of the potato, iPhone, and roller - coaster in questions 6 - 8, we can't accurately order them. But generally, if we assume they are at the same height, the object with the greatest mass will have the greatest potential energy. A roller - coaster is likely to have the greatest mass among them, followed by a potato, then an iPhone.

Answer:

1. $24.696\ J$
2. Without sufficient information, we assume that if at the same height, the order from least to greatest potential energy is iPhone, potato, roller - coaster (assuming typical mass values).