Physics, 14.01.2020 07:31, 12huskiesmidnight
Abook prone to air resistance is released from rest 300 m
above the ground. it has a speed of 40 m/s when it reaches the
ground. assume u = 0 on the ground, what percentage of the
initial mechanical energy of the book-earth system was
dissipated due to air resistance?
Answers: 1
Physics, 22.06.2019 02:30, mhurtado143
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 1ο 2: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 2ο 3: constant pressure expansion to 1 liter. process 3ο 1: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
Physics, 22.06.2019 02:30, estrellagutierrez12
Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic
Answers: 1
Physics, 22.06.2019 11:00, sudotoxic
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
Physics, 22.06.2019 12:30, olsen6932
As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?
Answers: 1
Abook prone to air resistance is released from rest 300 m
above the ground. it has a speed of 4...
above the ground. it has a speed of 4...
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