# Yahoo Web Search

1. ### A lens with f=+16cm is paired with a lens with f=−25cm. What is the focal length of the combination?

if these are 'thin' lenses and are touching 1/f = 1/f1 + 1/f2 I get about +44 cm When you get a good response, please consider giving a best answer. This is the only reward we get.

1 Answers · Science & Mathematics · 30/11/2020

2. ### Are democrats aware of exactly what "leadership" looks like in a pandemic?

While I don't think European nations are practicing martial law,  their governments have far more leeway in implementing strict measures nationwide.   That's really not possible in our country, so...

9 Answers · Politics & Government · 30/11/2020

3. ### How to remove badly stripped screw?

2 Answers · Home & Garden · 29/11/2020

4. ### Easy EM Wave Question?

27 MHz, lambda = 11.103 m 14 cm = k√11.103 k = 4.202 2400 MHz, lambda = 0.125 m penetration = 4.202√0.125 penetration = 1.49 cm or simply Penetration at 2400 MHz = 14√(27/2400) = 1.48 cm .

3 Answers · Science & Mathematics · 28/11/2020

5. ### calc help?

Let the base = "b" cm and height = "h" cm Total Surface Area of the box...

2 Answers · Science & Mathematics · 27/11/2020

6. ### Would I have to change 16m into cm ? And what is the height of the building?

You do not have to convert the 16 m into cm .  Since the conversion from m to cm would be the same either way, they cancel out...

2 Answers · Science & Mathematics · 26/11/2020

7. ### physics help?? ?

..., so 0.0576 kg·m² = 2*0.500kg * r² r = 0.240 m = 24.0 cm so the two masses are 2*r = 48.0 cm apart. If you find this...

1 Answers · Science & Mathematics · 26/11/2020

8. ### The Blue Sanctuary State People's Republic of Commiefornia blows it again?

That is what happens when checks and balances are thrown out to make it easier for people to do their thing.  CA has no common sense at all and neither do the vast majority of their voters.

3 Answers · Politics & Government · 25/11/2020

9. ### Assume that the top of your head has a surface area of 25 cm x 25 cm . How many newtons of force push on your head at sea level?

14psi * 100in^2 = 1400 lb

2 Answers · Science & Mathematics · 26/11/2020

10. ### Physics help (image attatched)?

τ = 2(FR) = 2(120.0)(0.31) = 74.4 N•m Please remember to select a Favorite Answer from among your results.

1 Answers · Science & Mathematics · 24/11/2020