Which of these best describes air pressure?
a
amount of pressure exerted by dust particles i...
Which of these best describes air pressure?
a
amount of pressure exerted by dust particles in the atmosphere
b
amount of pressure exerted in the air caused by gravity and matter moving on all objects
c
amount of pressure caused by volcanoes and wildfires in the atmosphere
d
amount of pressure in the atmosphere due to the movement of earth
Answers: 1
Physics, 22.06.2019 16:30
In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.
Answers: 3
Physics, 22.06.2019 20:30
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
Physics, 22.06.2019 21:30
In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane
Answers: 1
Mathematics, 10.07.2019 05:00
Mathematics, 10.07.2019 05:00
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History, 10.07.2019 05:00
English, 10.07.2019 05:00