# Yahoo Web Search

1. ### A concave cosmetic mirror has a focal length of 38 cm . A 3.0- cm -long mascara brush is held upright 19 cm from the mirror.?

...v 1 / v = 1 / f - 1 / u 1 / v = 1 / 38 - 1 / 19 = (1 - 2) / 38 = - 1 / 38 v = - 38 cm The image distance is negative —> the image is virtual, ...

1 Answers · Science & Mathematics · 19/11/2020

2. ### The candle is 3.2 cm from the cutout; how far is the candle from the wall?

"compact" implies "point-like"; use similar triangles 3.2cm / 8.2cm = d / 16cm d = 6.2 cm

2 Answers · Science & Mathematics · 23/11/2020

3. ### Lens Physics Question?

...value for "v" to get 1/f = 1/9 - 1/13.5 1/f = 3/27 - 2/27 = 1/27 f = 27 cm B) height of the image hi/ho = - v/u hi = 2.90 * 13.5/ 9 = 4.35 cm C...

1 Answers · Science & Mathematics · 17/11/2020

4. ### PHYSICS HELP PLEAS?

...58] - 19.6[35.7] + 0.102(9.8) + 1.278(9.8)[d] = 0 d = 49.65602... d ≈ 49.7 cm Please remember to select a Favorite Answer from among...

1 Answers · Science & Mathematics · 20/11/2020

5. ### physics question?

h = ½ * 9.8m/s² * (½*0.756s)² = 0.70 m, or 70 cm Hope this helps!

2 Answers · Science & Mathematics · 22/11/2020

6. ### Center of mass?

...50e-2*y + 0.75e-2*y²] evaluated from 0 to L m = 0.0184 kg cm : M = ∫ λ(y) y dy = ∫ (4.50e-2*y + 1.50e-2*y²) dy M = [2...

1 Answers · Science & Mathematics · 23/11/2020

7. ### what is the Center of Gravity (Centroid) of the shaded plane area shown ?

...Mx / A = 449.463cm³ / 76.566cm² = 5.87 cm and of course Xcm = 4 cm (Xcm, Ycm) = (4, 5.87) cm seems...

1 Answers · Science & Mathematics · 20/11/2020

...½ * 0.200kg * V² solves to V = 0.651 m/s = 65.1 cm /s ◄ c If you find this helpful, please select Favorite Answer...

2 Answers · Science & Mathematics · 20/11/2020

9. ### last help with physics homework?

τ = FR 250 = F(0.52)     F = 480.7692      F ≈ 481 N Please remember to select a Favorite Answer from among your results.

1 Answers · Science & Mathematics · 22/11/2020

10. ### Help with physics problem!?

Solution in image.

1 Answers · Science & Mathematics · 19/11/2020