b. The majority of the protons are aligned.
c. The majority of non-metal atoms are aligned.
d. The majority of the atoms have been acted upon by gravity.
c. remains the same
b. decrease
d. depends on the shape
As an object sinks in a fluid, the buoyant force decrease.
Hope this helped.
B. Frequently cleaning the furnace filter.
C. Fixing cracks in the walls and floor.
D. Opening the front door in winter to filter and clean warm air.
Answer:
D. Opening the front door in winter to filter and clean warm ai
Explanation:
All of the following are examples of ways to improve energy efficiency of heating systems, except _______.
A. Closing off rooms that aren’t in use.
B. Frequently cleaning the furnace filter.
C. Fixing cracks in the walls and floor.
D. Opening the front door in winter to filter and clean warm air
for an heating systems it is better to keep the front door shut so that all the heat energy does not escape outside.
when heat energy is within a closed system ,it can still be utilized to keep the inhabitants warm otherwise there will be an exchange with the cold from winter fall outside the air, and the heating system's efficiency will be reduced
-type of data did the scientist record was qualitative data.
-tool the scientist would use is electronic temp probe
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Answer:
The first one is qualitative data
The second one is electronic temp probe
Explanation:
In both scenarios, the work done on the heavy block is the same, as it is determined by the change in the vertical height. However, pulling the block up the inclined plane may require less force because the work is distributed over a larger distance.
The subject of this question is based on the concept of work and energy in physics. When you pull the heavy block straight upwards (scenario a), the work done is equal to the force times the distance, or Work = mg*h, where m is the mass of the block, g is the acceleration due to gravity, and h is the height it needs to rise. For pulling the block up the inclined plane (scenario b), the work done still equals mg*h as the vertical distance it rises is the same.
This is because, according to the principle of work and energy, the work done on an object is equal to the change in its kinetic energy. Since the speed of the block remains constant in both scenarios, the kinetic energy does not change, meaning the work done on the block is the same in both scenarios.
However, pulling the block up the inclined plane may require less force because of the larger distance over which the work is done. But the overall work is the same in both cases.
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Answer:
v = 0
Explanation:
Given that,
Total distance is 50 yards
Dugan got an early lead by finishing the first 25.00 yd in 10.01 seconds
Dugan finished the return leg (25.00 yd distance) in 10.22 seconds.
We need to find Dugan's average velocity for the entire race. As he returns at the initial position. As a result, the net displacement is equal to 0. So,
Average velocity = net displacement/time
v = 0
Hence, his average velocity for the entire race is 0.
Dugan's average velocity for the entire 50 yd race is 2.47 yd/sec, calculated by dividing the total distance (50 yd) by the total time (20.23 sec).
The first step involved is to calculate the total distance that Dugan had covered. In this case, he swam 25 yd twice, making the total distance 50 yd.
Next, we need to find the total time it took Dugan to swim the entire distance. We add the time of the first leg, which is 10.01 seconds, to the time of the return leg, which is 10.22 seconds, providing a total time of 20.23 seconds.
The average velocity is defined as the total distance divided by the total time. So, for Dugan, it would be 50 yd divided by 20.23 sec, which equals 2.47 yd/sec (rounding to the nearest hundredth).
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