Physics, 24.10.2019 21:43, katelynbychurch
Astudent along with her backpack on the floor next to her, are in an upward-moving elevator that is coming to a stop with an acceleration that decreases linearly in time from an initial value of a. the student gives her backpack a quick kick causing it to slide across the elevator, which has a coefficient of friction μ between itself and the backpack. what is the minimum speed that the student needs to impart to the backpack for it to hit the wall of the elevator, a distance d away by the time the elevator stops?
Answers: 1
Physics, 21.06.2019 21:30, spycn7717
Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s
Answers: 1
Physics, 22.06.2019 13:40, crayons18
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 22.06.2019 23:00, jakalenn2018
A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?
Answers: 1
Astudent along with her backpack on the floor next to her, are in an upward-moving elevator that is...
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