When the only force acting<span> on a falling </span>object<span> is </span>gravity<span>, the </span>object<span> is said to be in free fall. </span>force<span> of </span>gravity<span> is an unbalanced </span>force<span>, which causes an </span>object<span> to accelerate. Near the surface of Earth, the acceleration due to </span>gravity<span> is 9.8 m/s2.</span>
I think False ..........................................
Answer:
Hypothesis If the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.
Explanation:
Remember that a controlled variable is a variable that stays the same thoughout the experiment.
it wouldn't be a. because two different wires were used
the final length of the wax would be your dependent variable, so it wouldn't be c.
the thermal conductivity is the independent variable so it isn't d.
the original length of the wax was the same for both.
So B is your answer.
