Answer:
Focal length is 6.67 cm.
Explanation:
Object distance, u, from the lens = 10 cm
Image distance, v, to the lens = 10 cm + 10 cm
= 20 cm
Apply the lens formula to determine the focal length, f, of the lens.
= 
+ 
= 
+ 
= 
= 
Find the inverse of both sides, so that;
f = 
= 6.67
f = 6.67 cm
The focal length of the lens is 6.67 cm.
Answer:
Homozygous recessive, Recessive, and Homozygous Dominant.
Explanation:
Gases A, B, and D all have the same average molecular kinetic energy, since they are at 12°C.
Explanation:
If the snake has a black nose then it’s a coral snake also there’s a poem to help you remember:
Red touch yellow - kills a fellow
Red touch black - venom lacks
Yellow touches red - soon you’ll be dead
Red touches black - friend of jack
