Physics, 14.02.2021 14:00 idahopotato5429
sir/ maam/ pal i will draw you something if you help me answer this " 7-A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the temperature rises to 40°C in summer? The average coefficient of linear expansion of this steel is 11 10-6 K-1. "
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Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
Answers: 3
Physics, 22.06.2019 14:30
Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal
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Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m
Answers: 1
sir/ maam/ pal i will draw you something if you help me answer this " 7-A steel bridge is 1000 m lon...
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