Convex mirror. PLEASE HELP!
Homework Statement
An object 30 cm tall is placed 20 cm in front of a convex mirror. If the height of the image is +10 cm, find the focal length of the mirror.
Homework Equations
The Attempt at a Solution
I know to use 1/f = -(Image distance from V)...
new question though...
ok, so diamond has an index of refraction of 2.42. Suppose that a rectangular block of diamond is immersed in a tank of water and that a ray of light is passing through the dimaond makes an angle of incidence of 25 degrees in the diamond. What is the angle of refraction...
Speed of light. I NEED HELP! PLEASE!
Homework Statement
The index of refraction of table salt is 1.54 . What is the speed of light in table salt?
Homework Equations
The Attempt at a Solution
I NEED HELP!
I Need Immediate Help!
Homework Statement
Q: Which of the following produce VIRTUAL images on the same side as the object?
a. Convex mirror b.Concave mirror c. Plane mirror d. Convex LENS e.none of these
Homework Equations
The Attempt at a Solution
I know it's not "c"...
Definetly french. Look at the UN building. The signs are either in french or english. plus, every high ranked member in the UN needs to know french. Yah, yah Spanish is used in S. America, and Spain/Portugal.
But French is used in Canada, Europe, Africa, and Asia
THANK YOU SOO MUCH!
now i can finish my problem.
one more though...
in this equation for fluid mechanics...
F*sub*b = pVg
Is the V for volume? becuase I'm given the dimensions of a box floating on water and I have to figure out how much of it is under water
Homework Statement
Cylindrical tank of water is 20m tall, and full. atmospheric pressure is 1.01x10^5 Pa and the density of water is 1000Kg/m^3. Find absolute pressure 6m above the bottom.
Homework Equations
P=P*sub*a + pgh
The Attempt at a Solution
I got so far... P=(1.01 x...