Physics, 27.07.2019 14:00 sheilashair
Ablock of mass 0.2 kg, initially moving with a velocity of 10 m/s, slides up a curved ramp to a stop 10 m above its original level. a) draw free body diagrams of the block at the original level and also on the ramp. b) explain why the block stops moving at 10 m?
Answers: 1
Physics, 21.06.2019 14:00
Two red blood cells each have a mass of 9.0 multiply.gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries ā2.50 pc of charge and the other ā3.10 pc, and each cell can be modeled as a sphere 7.5 Ī¼m in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer
Answers: 2
Physics, 22.06.2019 09:20
Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 Ā½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers
Answers: 1
Physics, 22.06.2019 10:00
The rocket is fired vertically and tracked by the radar station shown. when Īø reaches 66Ā°, other corresponding measurements give the values r = 32700 ft, rĀØ = 85 ft/sec2, and ĪøĖ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Physics, 22.06.2019 10:50
The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
Answers: 3
Ablock of mass 0.2 kg, initially moving with a velocity of 10 m/s, slides up a curved ramp to a stop...
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