Answer:
1) When < (hence < f ) and they are both in front of the mirror (positive), the image will be larger and inverted
2) When > (and < f ) such that they are both positive (in front of the mirror), the image will be smaller and inverted
3) When the image is behind the mirror, for convex mirrors and the object is in front the image will be uptight. The magnification of the image will be the ratio of the image distance to the object distance from the mirror
Explanation:
The position of an object in front of a concave mirror of radius of curvature, R, determines the size and orientation of the image of the object as illustrated in the mirror equation
Where:
f = Focal length of the mirror = R/2
= Image distance from the mirror
= Object distance from the mirror
= Image height
= Object height
is positive for an object placed in front of the mirror and negative for an object placed behind the mirror
is positive for an image formed in front of the mirror and negative for an image formed behind the mirror
m is positive when the orientation of the image and the object is the same
m is negative when the orientation of the image and the object is inverted
f and R are positive in the situation where the center of curvature is located in front of the mirror (concave mirrors) and f and R are negative in the situation where the center of curvature is located behind the mirror (convex mirrors)
∴ When < (hence < f ) and they are both in front of the mirror (positive), the image will be larger and inverted
When > (and < f ) such that they are both positive (in front of the mirror), the image will be smaller and inverted
When the image is behind the mirror, for convex mirrors and the object is in front the image will be uptight. The magnification of the image will be the ratio of the image distance to the object distance from the mirror.
A. Elastic solids prevent sound from being transmitted better than liquids
B. Gases conduct sound better than liquids
C.inselastic materials conduct sound better than elastic solids
D.sound insulators prevent from being transmitted better than elastic solids
Answer:
what did u get one that baby
Answer:
Cumulative effect of two or more force can be found using Vector sum of all forces
Explanation:
Force is a vector quantity and in order to find the resultant of two or more forces we have to use the concept of vector addition
here we know that vector addition rule is given as
here we know that
= angle between two forces
so using this equation we can find the cumulative effect of two forces which are inclined at an angle with respect to each other
N
How far was the spring stretched at the moment it was released?
To find the force on the block, use Newton #1: F = m A
Force = (2.3 kg) x (0.27 m/s²)
Force = (2.3 x 0.27) kg-m/s²
Force = 0.621 Newton
The spring stretches 1 meter when to pull with 18 N of force.
To pull with only 0.621 N of force, it only has to stretch (0.621/18) of a meter. That's 0.0345 meter, or 3.45 cm .
B) automobiles
C) trains
D) submarines