Answer:
oxygen combines with small molecules. energy is released and it happens in the cytoplasm
Explanation:
The answer is B-plus.
The object is accelerating to the right, and up.
Complete question:
A child sits in a wagon with a pile of 0.64-kg rocks. If she can throw each rock with a speed of 7.5 m/s relative to the ground, causing the wagon to move, how many rocks must she throw per minute to maintain a constant average speed against a 3.9-N force of friction
Answer:
The number of rocks per minutes thrown is 49 rocks/min
Explanation:
Given;
mass of the rock, m = 0.64 kg
speed of the rock, v = 7.5 m/s
frictional force,
= 3.9 N
For an object to move at a constant speed, the applied force must be equal to the frictional force.

where;
is the applied force
N/t is the number of rocks per minutes thrown
Substitute the given parameters;

Approximately 49 rocks/min
This is a question that makes us REALLY want to know what "Which" means.
If you included a list of answer choices with your question, then the correct formula isn't on it.
The formula for converting temperature from degrees Celsius to degrees Fahrenheit is:
<em>°F = 1.8 · (°C) + 32</em>