Recent content by I_LuV_FiZiX

Homework Statement Hello all. Im not sure how to get the image of the organic compound i need to name on here, but I think I can do a good job of describing it. The compound I need to name is a cycloheptane with three substituents on it. These substituents are bonded to three consecutive...

Homework Statement An object whose height is 0.375 cm is at a distance of 10.5 cm from a spherical concave mirror. Its image is real and has a height of 1.145 cm. Calculate the radius of curvature of the mirror. Correct, computer gets: 1.58e+01 cm ACTUAL QUESTION How far from the...

oops never mind i got it... 13.94cm

Homework Statement A concave shaving mirror has a radius of curvature of 40 cm. It is positioned so that the (upright) image of a man's face is 3.30 times the size of the face. How far is the mirror from the face? Homework Equations M = Si/S 1/S + 1/Si = 2/R The Attempt at a...

oh okay...so is a final answer of correct? 2.77N I have one try left :S:S:S:S

can you give me a further hint as to how to find what to use for frequency? I've got less than an hour :S

Homework Statement A string from an Andrew Kirk violin is 30.0 cm long, with a linear density of 0.645 g/m. The violin is placed near a loudspeaker that is fed by an audio oscillator of variable frequency. It is found that the string is set into oscillation only at the frequencies 1312 Hz and...

It does no specify what units it wants, or how many significant figures. I have tried many combinations of both.

so do you think that it could possibly be an error with the computer? I can't see any mistake I have made.

that gave me an answer of 1521m, which seems kind of small anyway

still wrong

Homework Statement To change the direction of the plane, its wings are banked. If the wings of the plane are banked 50.0° to the horizontal, what is the radius of the circle in which the plane will be flying? Assume that the speed remains 480.0 km/h during the turn and that the magnitude of...

So Dick, are you saying that my answers are incorrect and I have to compute them another way? I.E. they are disjoint?

the pulley arrangement is two strings parallel to each other with a pulley at the top, she is in the bucket attached to the string on the left, and she is pulling down on the pulley on the right in order to bring her and the bucket up...thanks for considering my question :smile:

Homework Statement A window washer pulls herself upward using the bucket-pulley apparatus shown in figure below. Homework Equations With what force must she pull downward to raise herself slowly at constant speed? The mass of person plus bucket is 66.3 kg. The Attempt at a Solution...