Physics, 03.04.2020 18:08 Rodrigo6379
A uniform disk is constrained to rotate about an axis passing through its center and perpendicular to the plane of the disk. If the disk starts with an angular velocity of 3.0 rad/s and is subject to a constant angular acceleration of 9.0 rad/s2, find the angular displacement of a point on the rim of the disk as it rotates under these conditions for 18 s. (Assume the positive direction is in the initial direction of the rotation of the disk. Indicate the direction with the sign of your answer.)
Answers: 3
Physics, 21.06.2019 20:30, klocke2001
Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground
Answers: 1
Physics, 21.06.2019 22:30, jasoncarter
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
Answers: 1
Physics, 22.06.2019 16:50, boopiee2349
Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
A uniform disk is constrained to rotate about an axis passing through its center and perpendicular t...
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