Recent content by stevenbhester

We need more units! I'm guessing acceleration of 4.0m/s and an altitude of 1500 meters?

Certainly. How else would I postpone doing my chemistry work? And I haven't actually taken AP physics, so I suggest checking my answers that I give you. I just like math and am good at figuring stuff out.

Alright, you are going 26.9 m/s. When you stop, you take .9s before the deceleration takes place. So, it's .9 seconds plus however much time the deceleration takes. As such, Alright, you are going 26.9 m/s. When you stop, you take .9s before the deceleration takes place. So, it's .9 seconds...

You need to overcome the force of friction. The force of friction is Ff=(coefficient of friction)(weight of object in Newtons) Ff=(.8)(6*9.81) Ff=(.8)(58.86) Ff=47.088N I think :D

I do not think so. If he was to pull on the rope, the force that he puts on the rope would be transferred downwards on the platform he is trying to pull up. So if he exerts 500 N of force pulling the rope up, it doesn't matter. It's equalled out by force pushing the platform down exerted by...

Homework Statement The magnetic field in a loudspeaker is 0.2 T. The wire consists of 270 turns wound on a 3.13 cm diameter cylindrical form. The resis- tance of the wire is 7.9 Ω. Find the force exerted on the wire when 11.6 V is placed across the wire. Answer in units of N. B=.2 N=270...

If it was an infitesimally small point, then the composition of said infitesimal point would be dimensionless, and by definition without part. How could something without part erupt? I understand that an infitesimal point could form a substance if there is an infinite amount (in fact, any...

Personally, I'm just finishing My first year of physics and am free studying calculus so that I can learn quantam physics equations (I'm free studying that oto, the class is basic, I'm in 10th grade)

Well, first of all I don't see why you're calculating in gravity. Remember, you're only interested in the force as soon as it exits the fire hose. So, the momentum would just be the mass discharged per second times the velocity of the discharged mass (16*20) I took the beginning of physics...

Homework Statement A long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. The length of the air column, L, is adjusted by moving the tube vertically. The sound waves generated by the fork are reinforced when the...

Thanks, I guess the website is at fault. It maintains that I'm wrong. :(

Could you help with my question though please?

Oops, typo... question still stands though :)

Homework Statement A rock group is playing in a bar. Sound emerging from the door spreads uniformly in all directions. The intensity level of the music is 116 dB at a distance of 5.77 m from the door. At what distance is the music just barely audible to a person with a normal threshold...