Physics Help
never mind... i figured it out
Physics Help
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 V, R = 600 §Ù and L = 10 mH.
College Physics
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 factor of 6?
Physics -- Temp and heat
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 the afternoon, how much does the depth of the water increase?
College Physics
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 226 Hz, what is the string’s diameter? I have tried it several times and continue to get an incorrect answer.
Physics
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 acceleration due to gravity, on this new planet? Assume the radius does not change. I know that density = mass/volume & the volume of a sphere = 4/3pir^3...
College Physics
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 angle of 32.5°. It is currently possible for cars to travel through the turns at a speed of about 189 miles per hour. Assuming that these cars a...
Physics
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 the tile to pass between two windowsills that are 3.08 m apart. How far is the sill of the upper window from the roof of the building?
Physics
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 the tile to pass between two windowsills that are 3.08 m apart. How far is the sill of the upper window from the roof of the building?
College Physics
does my answer need to be negative due to the rocks falling?
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