Answer:
honestly it's gonna be 14.6 m/s
Explanation:
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
The equation for heat would be q = m*Delta T* S
Where q = the heat absorbed in joules
m = mass
Delta T = change in temperature
s = specific heat capacity of the material
for iron s = 0.450
Delta T = 23 - 13 = 10 degrees Celsius
m is given as 27 grams.
q = 27 * 10 * 0.450 = 121.5 joules
You may need to round the answer depending on what the teacher is looking for.
Answer:
Explanation:
When he accelerates the heavy object up , the reading increases because an extra downward normal force acts on it, then scale reading returns to the same reading as when standing stationary, and then decreases as although he is lifting the heavy object , the acceleration is decreasing ,so the extra upward normal force acts.
