Answer:
The Kelvin temperature scale is used by scientists because they wanted a temperature scale where zero reflects the complete absence of thermal energy. ... Many quantum mechanical properties are washed out by the thermal agitation that occurs in materials.
1c. The goal of technology is to improve how people live. For example a toothbrush helps prevent cavities and buildup on our teeth.
2a. Science and technology both help improve our lives. Science gives us the knowledge we need to create technology.
2b. A human prosthetic is an example of technology.
2c. Prosthetics are created though scientific study and research. Technology is used to create the material prosthetics are made of and to help design the prosthetics.
3a. Benefits of pesticides: Keeps bugs away from crops, higher crop yields.
Negatives:
pollution, harmful to health
I got all of them except the last one
A). The ball was moving at zero speed at the peak.
b). The acceleration of the ball was 9.8 m/s² downward, from
the time the hand threw it until the time the hand caught it.
c). see the answer to b).
d). see the answer to b).
e). The ball was in the air for 2 (22.5/9.8) = 4.6 seconds.
f). The ball was moving down at 22.5 m/s when it was caught.
The objects mass = volume x density
The dimensional formula for the moment of force is [M1L2T−2].
