Question

A concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm
away on its principal axis; the corresponding object is located how far from the
mirror?
a. 20.0 cm
b. 15.0 cm
c. 7.5 cm
d. 5.0 cm​

Answer 1

Answer:

Calculate the angle between the two vectors given by a=3i+3j+3k and b=2i+1j+3k

Explanation:

Calculate the angle between the two vectors given by a=3i+3j+3k and b=2i+1j+3k