1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
7nadin3 [17]
3 years ago
15

Who first arranged the elements according to atomic mass and noticed a periodic recurrence of their physical and chemical proper

ties?
A. Henry Moseley
B. Antoine Lavoisier
C. John Dalton
D. Dmitri Mendeleev
Physics
1 answer:
Rama09 [41]3 years ago
7 0
<span>Dmitri Mendeleev is the person who </span>first arranged the elements according to atomic mass and noticed a periodic recurrence of their physical and chemical properties. The answer is letter D.
You might be interested in
A student decides to spend spring break by driving 50 miles due east, then 50 miles 30 degrees south of east, then 50 miles 30 d
PolarNik [594]

Answer:

a. 600 ml, 12

Explanation:

The movement described in the question exhibits that of a polygon. Exhibiting a constant distance and angle with only varying direction until the starting point is reached.

The sum of exterior angles of a polygon = 360 degrees.

Exterior angle of a polygon = (360 ÷ number of sides)

Therefore,

Number of sides = 360 ÷ exterior angle

Exterior angle = 30 degrees

Hence,

Number of sides = 360 ÷ 30 = 12 sides

Since distance traveled of 50 miles is the same for each displacement ;

Total displacement = distance traveled * number of sides

Total displacement = 50 * 12 = 600 miles.

5 0
3 years ago
GPS consists of three segments what are they?
WARRIOR [948]

Answer:

GPS consist of the space segment, the control segment, and the user segments

4 0
3 years ago
Please help !!
nikitadnepr [17]
If the speed is constant, the acceleration a must be zero. Since force F = m•a, the total force must be zero.
In a 1D case, work W is the product of force F and distance d: W = F • d.
Since there is no more information given about friction or air resistance, I have to assume you are looking for the work done by the total force, wich is also zero.
3 0
3 years ago
in a lab, resonance tubes are used to determine experimentally the speed of sound. using the data given, evaluate the best appro
jek_recluse [69]

The approximate speed of sound is about 761 mph or 335.28 meters/second.

<h3>What's the approximate speed of sound?</h3>

If we consider the normal atmosphere at sea level, the speed of sound is about 761 mph or 335.28 meters/second. The speed of sound is different in different mediums such as solid and liquid.

So we can conclude that the approximate speed of sound is about 761 mph or 335.28 meters/second.

Learn more about speed here: brainly.com/question/4931057

#SPJ1

3 0
2 years ago
A photoelectric experiment is performed where green light with a wavelength of 546.1 nm is shined on a metal plate, creating a p
PtichkaEL [24]

Answer:

\phi=1.55 [eV]

Explanation:

We can use the work function equation for a photoelectric experiment:

\phi=\frac{hc}{\lambda}-K_{max}

  • h is the plank constant
  • c is the speed of light
  • λ is the wave length
  • K is the kinetic energy (or K=eΔV)

So we will have:

\phi=\frac{hc}{\lambda}-e\Delta V

\phi=\frac{6.63*10^{-34}*3*10^{8}}{546.1*10^{-9}}-0.728eV    

\phi=3.64*10^{-19}[J]-0.728 [eV]

\phi=(3.64*10^{-19}[J]*\frac{1eV}{1.6*10^{-19}[J]})-0.728 [eV]

\phi=2.28 [eV] - 0.728 [eV]

\phi=1.55 [eV]

I hope it helps you!

8 0
4 years ago
Read 2 more answers
Other questions:
  • Suppose you are selling apple cider for two dollars a gallon when the temperature is 3.3 degree C. The coefficient of volume exp
    14·1 answer
  • A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m apart, and each chair can seat
    15·1 answer
  • g If the interaction of a particle with its environment restricts the particle to a finite region of space, the result is the qu
    14·1 answer
  • . The earth revolves around the sun in the counterclockwise direction, completing one full revolution about every 365 days. In r
    14·1 answer
  • With certain exceptions, Class E airspace extends upward from either 700 feet or 1,200 feet AGL to, but does not include,A) 14,5
    5·1 answer
  • If I hit myself, and it hurts, does that make me weak or strong?<br><br> A. Yes<br> B. No
    12·2 answers
  • A CAR APPROACHING A SCHOOL ZONE SLOWS DOWN FROM 38 M/S TO 10 M/S AT A CONSTANT ACCELERATION -4 METER PER SEC SQUARE HOW MUCH TIM
    15·1 answer
  • A spring has 100 J of EPE when it is stretched 2 m. What is the spring constant?
    14·1 answer
  • PLEASE HELP ME
    5·2 answers
  • In a diving team, you are the team leader and you have three orientation in a trip 1-the red sea (low density) , 2-Dead sea (hig
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!