Answer:
This question is vague because it doesn't specify whether 20° is the angle of incidence or the angle the ray makes with the surface
But If we consider 20° as the angle of Incidence...
The Angle of Reflection = 20° also
Because
From The Law of Reflection
Angle of Incidence = Angle of Reflection
Explanation:
Answer:
I found the experience tasking
Explanation:
I wouldn't say it was hard, neither was it easy. I'd rather go for something like it being tasking. It's worthy of note that it was my first time, and I think it's very normal especially when one hasn't been doing something of that nature previously. Of course I did my draft, which unsurprisingly happened to be not good enough, and I had to look for templates to guide me through the acceptable way.
I still did it in my own way, but in the right way. Ever since then though, I have never stuttered when writing application letters, as it had since then seem inborn
Answer:
0.19 rev
Explanation:
We can solve the problem by using the law of conservation of angular momentum. In fact, if we assume there are no external torques acting on the diver, the angular momentum must be conserved:
where
L is the angular momentum
I is the moment of inertia
is the angular velocity
- When the diver is tucked,
is her moment of inertia
She makes 2 revolutions (so, ) in t = 1.0 s, so her angular velocity is
So her angular momentum is
- When the diver is not tucked,
The angular momentum is conserved, so
the moment of inertia is
So the angular velocity is
So in a time of t = 1.5 s, the angular displacement is
Converting into revolutions,
Answer:
There are three ways an object can accelerate: a change in velocity, a change in direction, or a change in both velocity and direction.
Explanation:
Answer:
Hydrosphere
Explanation:
One of the main components of Earth's interdependent physical systems is the hydrosphere. The hydrosphere is the sum of Earth's water, in the ocean, the ground, on the surface, and in the air.