Questions About: Physics
Hi I'm confused, is it possible for a current-potential difference graph to be non linear even if the resistance is constant throughout? I keep getting a nonlinear graph even when my resistance values are constant. Am I just doing this wrong or is my data wrong? Thanks for any help!
Sun, 01 Aug 2010 09:46:38 GMT
For my Physics homework, we have been asked to present a page on creating a mirror that presents an image 5% slimmer, BUT NO TALLER.
Sun, 01 Aug 2010 09:27:26 GMT
When traveling at 100km/h along a horizontal road, a car has to overcome a drag force due to air resistance of 800N. If the car as a mass of 900kg determine the average force that the motor needs to apply if it is to accelerate at 2.0 metres/s^2. My brain explodes when it comes to grasping motion and force concepts, could someone please provide an explanation on how this is solved? Thanks in advance.
Sun, 01 Aug 2010 08:32:49 GMT
Two physics students, Helen and Emily, conduct the following experiment from a skyscraper.
drops a platinum sphere from a vertical height of 122 m while at exactly the same time Emily throws a lead sphere with an initial downward vertical velocity of 10.0 m s^-1 from a vertical height of 140 m.
g=9.80 m s^-2 and ignore friction. Calculate the time taken by the lead sphere to strike the ground.
drops a platinum sphere from a vertical height of 122 m while at exactly the same time Emily throws a lead sphere with an initial downward vertical velocity of 10.0 m s^-1 from a vertical height of 140 m.
g=9.80 m s^-2 and ignore friction. Calculate the time taken by the lead sphere to strike the ground.
Sun, 01 Aug 2010 08:27:03 GMT
Today my best friend didn't come to school. I called him and he didn't answer. My mom told me that his 13-year old first cousin passed away today due to brain tumor (cancer). I text him to say sorry but he replied me saying he didn't want to talk to anybody and neither to tell him what the homework was. He sounded angry with me. I don''t know if i should go to his house. I mean we have a very important school homework for tomorrow and he doesn't want to talk to me so i can tell him what the hw is! It's a physics proyect! We are in summer school.
Sun, 01 Aug 2010 08:23:44 GMT
Today my best friend didn't come to school. I called him and he didn't answer. My mom told me that his 13-year old first cousin passed away today due to brain tumor (cancer). I text him to say sorry but he replied me saying he didn't want to talk to anybody and neither to tell him what the homework was. He sounded angry with me. I don''t know if i should go to his house. I mean we have a very important school homework for tomorrow and he doesn't want to talk to me so i can tell him what the hw is! It's a physics proyect! We are in summer school.
Sun, 01 Aug 2010 08:22:25 GMT
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Learn about physics, the science of matter and energy. Sites address the major subdisciplines and topics in physics: mechanics, magnetism, light and optics, acoustics, quantum physics, and relativity.
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physics n. (used with a sing. verb) The science of matter and energy and of interactions between the two, grouped in traditional fields such as
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Searchable database of resources from the Institute of Physics which matches user queries to handpicked sites. Also includes Physics Life animation.
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