Answer:
real, inverted, and smaller than the object
Explanation:
When the object is placed beyond the center of curvature, the image will formed between the focus and the center of curvature. The size of the image is diminished and its nature is real and inverted.
The whole description is shown in the attached figure. It is clear that the size of the image is smaller than the object.
 
        
             
        
        
        
Answer:
5x10^-3
Explanation:
Hooke's Law states that the force needed to compress or extend a spring is directly proportional to the distance you stretch it. 
 Hooke's Law can be represented as
<h3> F = kx, </h3>
<em>where F is the force </em>
<em>            k is the spring constant</em>
<em>            x is the extension of the material </em>
<em />
Plug values in the equation
Step 1 find the original extension
0.045 = (400)x
x = 1.125x 10^-4 m d
Step 2 find the new extension
0.045+2 = 400(x)
2.045 = 400x
x = 5.1125x10^-3
Step 3 subtract the new extension with original 
Total extension of the spring =  5.1125x10^-3 - 1.125x 10^-4 m = 5x10^-3
 
        
             
        
        
        
Answer: b
Explanation:
B is a chemical property 
Reference what are physical properties 
And what are chemical properties 
Under certain conditions it can release a gas is the key words letting you know this is a chemical property 
 
        
             
        
        
        
Here is your answer:
First find the notations:
2×10^-3
=0002
And...
2.5×10^4=25000
Then divide:
0002÷25000=8E-9
Your answer:
=8 x 10-8