Answer:Developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete- Niels Bohr
Discovery of energy quanta made him the originator of quantum theory -Max Plank
Formulated the wave equation; stationary and time-dependent Schrödinger equation- Erwin Schrödinger
Best known to the general public for his "mass–energy equivalence formula" ; E = mc^2-B Albert Einstein
Postulated the wave nature of electrons and suggested that all matter has wave properties- Louis de Broglie
Explanation:
All the names mentioned above contributed towards the development of the wave mechanical model of the atom. Their names were matched with their contributions as required by the question.
Answer:
D
Explanation:
The color you see is the color the object reflectes. The rest of the color are absorbed by that object.
While sliding down a hill in a sled, the force of gravity causes the sled to accelerate down the hill. The force of friction eventually causes the sled to stop. the friction force partly cancels some of the gravity force pulling the sled down. These two forces affect many motions on Earth.
I looked up the speed of sound in water ... you could have done it,
but I did it for you. It said 1,484 m/s ... I don't know if that's for fresh
water or sea water, but for 5 points I'm not going to worry about it.
Time = (800 meters) x (1 sec / 1,484 meters)
= (800 x 1,484) seconds
= 0.539 second . (rounded)
The first choice on the list is the closest one.
Answer:
An object moves at a constant speed of 6m/s. this means that the object moves 6 meters every second
Explanation: