Physics, 04.01.2020 02:31 siriuskitwilson9408
Transverse pulses travel with a speed of 200 m/s along a taut copper wire whose diameter is 1.50 mm. what is the tension in the wire? (the density of copper is 8.92 g/cm3.)
Answers: 1
Physics, 22.06.2019 05:30, kolibeilfuss
What is the most useful equation for electric power?
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Physics, 22.06.2019 09:00, edgarsandoval60
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
Physics, 22.06.2019 16:50, Walkman2092
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
Transverse pulses travel with a speed of 200 m/s along a taut copper wire whose diameter is 1.50 mm....
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