Continental
drift. This Theory was invented by Alfred Wegener.
<span>His
hypothesis was that the continents move relative to each other on the tectonic
plate and so they drift. The drifting and folding of the continents results in pushing
up huge mountains.</span>
Answer:
Option D.) 0.09 I₀
Explanation:
The intensity, I, of a polarized light after passing through a polarizing filter is given by 
Original Intensity
Angle between the direction of polarization and the axis of filter
After passing through the first polarizer, the initial intensity, 
is halved, i.e 
After passing through the second polarizer, the angle of polarization, θ = 30⁰
After passing through the third polarizer, the angle of polarization, θ = 90⁰-30⁰ = 60⁰
Answer:
88.89kg
Explanation:
The formula for mass is m=F/a. If we plug in the values, we get m=400N/4.5m/s^2. The mass is 88.89kg. We know that the unit is in kg because one newton (N) is 1kg*m/s^2. The m/s^2 is cancelled out by the acceleration, and we are left with kg.
C. Usually when an atom loses or gains an electron, it is because it is trying to satisfy the Octet Rule. The Octet Rule states that an atom is at its stablest when it has 8 valence electrons (two in helium's case)
If you look on the periodic table, elements on the left (Alkaline Metals) are the most reactive because they only have one valence electron (or electron in the outer shell). Elements on the right (Noble Gases) are the least reactive because they have a full outer shell of 8 valence electrons.
Later on you will find that as stability decreases as you go down the periodic table but that is a discussion for a different time.
Answer:
-352.275KJ
Explanation:
We are given that
Mass of car=1500kg
Initial speed of car =u=96 km/h=
1km/h=
Final speed of car=v=56km/h=
Distance traveled by car=s=55m
We have to find the work done by the car's braking system.
Using third equation of motion
Where negative sign indicates that velocity of car decreases.
Work done by a car's barking system=
Work done by a car's barking system=
Work done by a car's barking system=
1KJ=1000J
Where negative sign indicates that work done in opposite direction of motion.
