Recent content by delta_mu

ok I have another problem here. Please help me. Thank you in advance. A 1.50 kg sled scrapes down a grassy incline where the coefficient of friction is 0.678. The sled moves at a constant speed f 4.50 m/s and it takes 12.5 seconds to travel the entire length of the hill to the bottom...

Wait...I am so sorry, I realized that I have no idea as to what equations you are using. The equations I was given are the Force of Friction(Ff=mu times the normal force) and the Centripital Force(Fc=mass times the velocity squared divided by the radius. Thanks again to whoever answers.

thanks a lot...it helped out a lot

Help with problem..."rotor ride" OK I was assigned this homework sheet on Uniform Circular Motion and Law of Universal Gravitation...and there is only one problem I can not get. If you could, please help me. Thanks in advance. Here it is: The "Rotor" ride is the one which presses you...

Ok, I was giving this question about levers: What is the ideal mechanical advantage for each of the three lever systems? The three lever systems are the basic ones, and there is no numbers. It is just a question asking for explanation. Thanks

Thanks a lot. That helped so much.

Thank You So Much!

I Have A Puzzling Question! CAN SOMEONE PLEASE TELL ME WHAT A STREAMLINED DESIGN ENGINE IS AND HOW IT IMPROVES THE FUEL ECONOMY. Thanks

Thanks for the answer, but I guess I did not clairfy what I needed. That problem was given to me, and we were told to explain it. We just finished learning about energy. And I am having trouble answering it. So if you oculd try to explain why that I would greatly appreciate it, but if not thanks...

Hello, I am having a little problem understanding a problem it deals with energy. Here it is: You tell your friend that no machine can possibly put out more energy than is put into it, and your friend states that a nuclear reactor puts out more energy than is put into it. What do you say...

Yes thank you very much. That helps a lot. Now all I have to do is just know when to apply it everyday situations. Thanks cookie monster

I think what I am trying to get at is, I am not sure how to apply to say this question: 1)The head of a hammer is loose and you wish to tighten it by banging it against the top of a workbench. Why is it better to hold the hammer with the handle down, rather than with the head down. Explain in...

Ok, I am a high school student who is currently taking Honors Physics. I really enjoy the teacher and what we do in the class, but I just can't seem to apply Newton's First Law of Inertia. I had taken a quiz on it, and I did not do very well. If someone is willing to please help me understand...