Recent content by viendong

when I graphed in the calculator, it appeared that the range is between 0-7...

so, this is the answer... :shy: really confused. thanks

I really need help how to find range for this question... thanks 4/sqrt(5-2x)

need help ASAP [solved] :) I've been trying for hours... and couldn't get it right though A 100 g steel ball and a 200 g steel ball each hang from 1.00 long strings. After rest, the balls hand side by side, barely touching. The 100 g ball is pulled to the left until its string is at a 45...

thank you very much, i got it now .. hihii :)

i still don't get how can I resolve to find the acceleration for each of (x, y) direction Isn't x acceleration =0 and the y direction is .80 m/s^2 ? I'm confused... please help

A sailboat is traveling east at 5. m/s. A sudden gust of wind gives the boat an acceleration =0.80 m/s^2, 40 degree north of east 1) what is the boat's speed later when the gust subsides? 2) what is the boat's direction 6.0 s later when the gust subsides? I've a question I need to find...

hi, i think i got it . it's 1/mu after all :)

I'm not quite understand how \mu \sin \theta - \cos \theta = 0 relate w/ tan(\theta critical) ?

hi, I've approach the first question, but i don't know how to start w/ this question. I already have my body diagram and everything. Could someone tell me how ? ------------ Consider a lawnmower of weight which can slide across a horizontal surface with a coefficient of friction . In this...

it's asked for What is the component of the plane's velocity perpendicular to the ground?

ah, it's 500 m/s

A jet plane is flying horizontally with a speed of 500 over a hill that slopes upward with a 3.00% grade (i.e., the "rise" is 3.00% of the "run"). Hi, i don't understand the part about 3.00% grade. Could someone please help me how to set up, Is that the slope or something?

wow, thank you very much, i used this equation, it's really helpful though (vf)^2=(vi)^2+2a(xf-xi) :)

please help me with this one A speed skater moving across frictionless ice at 8.70 hits a 4.90-m-wide patch of rough ice. She slows steadily, then continues on at 5.80 . What is her acceleration on the rough ice?