What is the potential energy of a bird sitting in a tree if the bird has a mass of 2Kg and it is 10 meters above the ground?
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Ответ:
The potential energy of a bird : 196 J
Further explanationGiven
mass of bird = m = 2 kg
height = h = 10 m
Required
The potential energy
Solution
Potential energy is the energy that objects have because of their position. Usually related to the earth's gravitational force
Can be formulated
PE = m g h
g = acceleration due to gravity ⇒ 9.8 m/s²
Input the value :
PE = 2 kg x 9.8 m/s² x 10 m
PE = 196 J
Ответ:
Part A: Total cost = 10 + 4s
Part B: Solving for s = 2
10 + 4 * 2 = US$ 18
Correct statement and question:
Write an expression to represent admission to a zoo of $10.00 and the cost of special exhibits s at $4 each. Evaluate your expression when s = 2.
Source: https://www.slader.com/discussion/question/write-an-expression-to-represent-admission-to-a/
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Admission to the zoo = US$ 10
Special exhibit cost (s) = US$ 4
2. Evaluate your expression when s = 2
Total cost = Cost of admission + (s) * Special exhibit cost
Total cost = 10 + (s) * 4
Total cost = 10 + 4s
3. Solving for s = 2
10 + 4s
10 + 4 * 2 = US$ 18