Recent content by physicaled

Sorry for the late reply. Hate to say it but that was all the information that was given in the problem.

Homework Statement A 1.5 kg ball is tied to a string that is .75 m long and whirled in a vertical circle. A) Find the tension in the string at the top of the circle B) Find the tension in the string at the bottom of the circle Homework Equations Fc=mac ac= v2/r The Attempt at a Solution A)...

No worries! Thank you so much for your help!

Actually could you solve it so that: a= v2/r 20= v2/8e6 v2= 160,000,000 v= 12,649.1 m/s GM/r= v2 (6.67e-11)(M)/8e6 = 12649.12 6.67e-11M= 1.28e15 M = 1.92e25 GM/r = v2 (6.67e-11)(1.92e25)/(8e6+300,000)= v2 154293975.9 = v2 12421.5 m/s = v Was this what you were getting at? I was staring at...

I suppose you mean the F = GMm/r2 equation? My teacher doesn't really teach so it's mostly us students trying to guess at things. So it would become: GM/r = v2 leaving me with (6.67e-11)(M)/(8e6+300,000) = v2? I'm sorry thank you for your patience

The only formula I can think to use would be a = v2/r which would leave me with a = v2/ (8e6 + 300,000) and then I'm still completely lost

Homework Statement On the surface of a distant planet, objects experience an acceleration due to gravity of 20 m/s2. The distance from the center of the planet to its surface is 8.0 * 106 m. Find the velocity of a moon that is circular orbit about the planet at a height of 300,000 m above the...

Homework Statement In a 100 m race between a lion and a tiger, the lion starts from rest and accelerates at a rate of 2 m/s2 for 5 seconds, then maintains a constant velocity for the rest of the race. The tiger starts from rest and accelerates at a rate 3 m/s2 for 4 seconds, then maintains a...

force change by the length change So if it is then 5.33 g/cm for the constant then when the weights are said to be less, the spring constant would decrease? Because 40 g/7.5 cm becoming 7g/7.5 cm would be a whole lot less.

Homework Statement The question is "Imagine you are told after performing your experiment that the weights in your weight set are incorrectly labeled, and weigh less than you thought. Does that mean the value you determined for the spring constant is wrong? If so, is your value too high or too...

Hi everyone! I'm a first year, AP Physics 1, student and I look forward to reading some of the questions out there and asking some too!