Answer:
A larger image is produced when 
> 
A smaller image is produced when <
An upright image is produced when m is positive
An upright image is produced when m is negative
Explanation:
The mirror equation is given as follows;
For concave mirrors, f = focal length
= Image distance from the mirror (-ve = Image is behind the mirror +ve = Image is in front of the mirror)
= Object distance from the mirror (-ve = Object is behind the mirror +ve = Object is in front of the mirror)
m = Magnification (-ve m = Inverted image +ve m = upright image)
= Image height
= Object height
f = Focal length of the mirror
To produce a larger image >
To produce a smaller image <
To produce an upright image, m should be positive hence, will be negative or the image will appear behind the mirror
To produce an inverted image, m should be negative hence, will be positive or the image will form in front of the mirror.
Answer:Acids and bases cannot mix together. Acids and bases will neutralize each other. Acids, but not bases, can change the pH of a solution. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+)
Since speed (v) is in ft/sec, let's convert our diameters from inches to feet:
1) 5/8in = 0.625in
0.625in × 1ft/12in = 0.0521ft
2) 0.25in × 1ft/12in = 0.021ft
Equation:
new velocity coming out of the hose then is
44 ft/sec
..... equal to the force from the engine pushing the car forward.
That's why the car is not accelerating. The horizontal forces on it
are balanced.
Question seems to be missing. Found it on google:
a) How long is the ski jumper airborne?
b) Where does the ski jumper land on the incline?
a) 4.15 s
We start by noticing that:
- The horizontal motion of the skier is a uniform motion, with constant velocity
and the distance covered along the horizontal direction in a time t is
- The vertical motion of the skier is a uniformly accelerated motion, with initial velocity 
and constant acceleration 
(where we take the downward direction as positive direction). Therefore, the vertical distance covered in a time t is
The time t at which the skier lands is the time at which the skier reaches the incline, whose slope is
below the horizontal
This happens when:
Substituting and solving for t, we find:
b) 143.6 m
Here we want to find the distance covered along the slope of the incline, so we need to find the horizontal and vertical components of the displacement first:
The distance covered along the slope is just the magnitude of the resultant displacement, so we can use Pythagorean's theorem:
