Aripe pear falls from a tree and lands on the ground. as it hit the ground, the pear had a speed of 28 feet per second. approximately how far up in the tree was the pear before it fell? use the formula below, and assume that the acceleration due to gravity is 32 feet per second squared:

The potential energy is converted into kinetic energy.

 Therefore, for conservation of energy we have:

 mgh = (1/2) m * v ^ 2

 From here we clear the speed:

 v = root (2 * g * h)

 The height will then be:

 h = v ^ 2 / (2 * g)

 Substituting the values:

 h = (34) ^ 2 / (2 * (32))

 h = 18.0625 feet

  The pear before it fell was 18.0625 feet up in the tree.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

whatvare the choices

step-by-step explanation: