Answer:
7,546 J
Explanation:
recall that Potential energy is given by
P.E = mgΔh
where m = 70kg (given)
g = 9.8 m/s² (acceleration due to gravity)
Δh = change in height
= distance from top of building to top of car
= height of building - height of car
= (5+8) - 2
= 11m
substituting all these into the equation:
P.E = mgΔh
= 70 x 9.8 x 11
= 7,546 J
Classify is not a step in the inquiry process
Answer: The required distance is given by
Explanation: The sound intensity in dB is given by the formula
where 
is the hearing threshold in absolute units and 
is the absolute intensity of the sound which depends on the distance. In general, for two distances 
and 
we have that
Now let us take 
and let be the required distance. We have
Exponentiating these equations we obtain
Dividing them
Using the previously stated identity
Now if we use the given example where 
we have
Answer:
The answer is...
D ( Plants use molecules of carbon dioxide to make sugar molecules.)
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules. During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Have an awesome day friend! <3
