After creating a question and forming a hypothesis, what is the next step in the scientific method
1 answer:
You might be interested in
Answer:
The frictional force producing this deceleration would have a magnitude of .
Explanation:
The velocity of this object changed by in
. The acceleration of this object would be:
.
Let denote the mass of this object. By Newton's Second Law of Motion, the net force on this object would be:
.
(.)
If the floor is level, friction would be the only unbalanced force on this object. Thus, the magnitude of the frictional force on this object would also be , same as the magnitude of the net force on this object.
Answer:
D
Explanation:
A is wrong as otherwise the ocean would be black as light could not pass through it to create images.
B is wrong. This is a weird one as the electromagnetic spectrum attached below shows that radio waves have the least amount of energy vs gamma which has the highest and you can't really compare this to sound waves.
C just straight up false.
D is correct, no way to remember this, just learn it. a couple of facts about transverse waves of google. Electromagnetic waves are a type of transverse waves. These waves do not require a medium to travel. As the name of the waves imply, these waves show electrical and magnetic properties. No any charge occur in the waves. Electromagnetic waves work by the laws of reflection and refraction. They travel as straight lines in a vacuum at a speed of 3 x 10 8 ms -1.
Extra info:
As gamma waves have the highest energy it means that the waves are closer together (the wavelength is smaller) and they create more heat. Also gamma waves go through everything, X-ray only through skin and bounces of dense things like bones, which creates images. These eventually weaken more and more until radio waves do not pass through anything and just bounces around and everywhere which allows you to gain more coverage on a radio then on a cell phone.
