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Anon14
Questions (14)
What is the energy stored in the inductor shown in the figure after the switch has been closed for a very long time? Take V = 15
1 answer
482 views
An electron and a proton are a distance r = 8.5 × 10-9 m apart. How much energy is required to increase their separation by a
1 answer
951 views
Your swimming pool is square and 5.7 m on a side. It is 1.5 m deep in the morning. If the temperature changes by 14°C during
1 answer
679 views
A steel piano string for the note middle C is about 0.68 m long and is under a tension of 400 N. If the fundamental frequency is
0 answers
570 views
Suppose the density of the Earth was somehow reduced from its actual value to 1300 kg/m3. What would be the value of g, the
0 answers
700 views
The Daytona 500 stock car race is held on a circular track that is approximately 2.25 miles long, and the turns are banked at an
2 answers
1,029 views
A roofing tile falls from rest off the roof of a building. An observer from across the street notices that it takes 0.42 s for
0 answers
571 views
A roofing tile falls from rest off the roof of a building. An observer from across the street notices that it takes 0.42 s for
0 answers
657 views
Two children are playing on a 178.2 m tall bridge. One child drops a rock (initial velocity zero) at t = 0 . The other waits
3 answers
618 views
When a large bone such as the femur is broken, the two pieces are often pulled out of alignment by the complicated combination
1 answer
2,052 views
A rock is dropped from a tree of height 36.5 m into a lake (depth 9 m) below. After entering the water, the rock then floats
0 answers
524 views
An airplane must reach a speed of 240.5 mi/h in order to take off. If the runway is 571.5 m long, what is the minimum value of
0 answers
511 views
A car starts from the origin and is driven 1.72 km south, then 3.11 km in a direction 58° north of east. Relative to the
1 answer
554 views
A thief is trying to escape from a parking garage after completing a robbery, and the thief’s car is speeding (v = 17.5 m/s)
3 answers
1,637 views
Answers (2)
never mind... i figured it out
does my answer need to be negative due to the rocks falling?
