Ultraviolet has a shorter wavelength than microwaves, so purple also has a shorter wavelength than red.
C is thus the answer
Mass is a property of an object, a cloud of gas, a puddle of liquid, or a lump of goo, and doesn't necessarily change when the object moves to a different location or environment. It depends only on the object itself.
Weight is completely a product of what else is in the nearby location,so it can easily change. It's the result of the gravitational forces between <em>two</em> objects . . . the first one with the constant mass, and <em>another one</em> that also has mass. The forces between them, and therefore the weight, depend on <u>both</u> masses, AND on the distance between them.
MA = output force/input force
MA = 12N / 4N
MA = 3N
Answer:
Explanation:
When a projectile is launched at some angle to the horizontal with some speed vi , and air resistance is negligible , it is definitely a freely falling body .
It is so because it is free to accelerate towards the earth with acceleration of g . Air has no resistance , hence no force is acting on it except the gravitational force . Hence it is a freely falling body .
b )
The acceleration in the vertical direction is due to force exerted by the earth that is gravitational force on it . Hence its acceleration is equal to g in vertically downward direction .
c )
It has zero acceleration in horizontal direction . It is so because no force is acting on it in horizontal direction . So no acceleration will be present in horizontal direction . It will move in horizontal direction with constant speed of vi cos θ where θ is the angle vi make with the horizontal .
