Answer:
According to Newton's second law of motion, an object with a heavier mass will have more acceleration than an object with a smaller mass if both objects are moving with the same speed.
Explanation:
F=ma
a=F/m
a∝1/m
mass of any object is inversely proportional to its acceleration.
hence proved, an object with a heavier mass will have more acceleration than an object with a smaller mass if both objects are moving with the same speed.
Answer:
gennes and dna produced by parents through intercorce i think if this is on apex
Answer:
F = 47261.5 N = 47.26 KN
Explanation:
First, we will calculate the deceleration of the bullet by using the third equation of motion:
where,
a = deceleration = ?
s = distace covered = 5.2 cm = 0.052 m
vf = final speed = 0 m/s
vi = initial speed = 640 m/s
Therefore,
negative sign shows deceleration.
Now for the force, we will use Newton's Second Law of Motion:
F = ma
where,
F = Force = ?
m = mass of bullet = 12 g = 0.012 kg
Therefore,
F = (0.012 kg)(3938461.5 m/s²)
<u>F = 47261.5 N = 47.26 KN</u>
Answer:
80mm or 8cm
Explanation:
According to the lens formula,
1/f = 1/u+1/v
If the object distance u = 4cm = 40mm
Object height = 1.5mm
Image height = 3mm
First, we need to get the image distance (v) using the magnification formula Magnification = image distance/object distance = Image height/object height
v/40=3/1.5
1.5v = 120
v = 120/1.5
v = 80mm
The image distance is 80mm
To get the focal length, we will substitute the image distance and the object distance in the mirror formula to have;
1/f = 1/40+1/-80
Note that the image formed by the lens is an upright image (virtual), therefore the image distance will be negative.
Also the focal length of the converging lens is positive. Our formula will become;
1/f = 1/40-1/80
1/f = 2-1/80
1/f = 1/80
f = 80mm
The focal length of the lens 80mm or 8cm
Answer:
Stretching vibration and bending vibration
Explanation:
1. Stretching vibration results in the variation of the bond length. There are two types of stretching vibration:
- In asymmetric bending, bonds move in and out as a result of the vibration.
- In symmetric bending, bonds move such that the bond length either gets shorter or longer.
2. Bending vibration results in the variation of the bond angle.
These can be grouped into 4 types:
- Rocking- It is that motion in which two atoms are in the motion like that of the motion of a pendulum of a clock.
- Scissoring- The motion of to atoms either away from each other or towards each other.
- Twisting- It is where the motion of the two atoms resembles that of the motion on a treadmill.
- Wagging- It is the motion in V- shape in the back and forth direction.