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
Harrizon [31]
3 years ago
13

By studying ____________________ scientists have learned about the layers of the Earth.

Physics
1 answer:
Flauer [41]3 years ago
4 0

Answer: By studying seismic waves scientists have learned about the layers of the Earth.

You might be interested in
What is a phone message?
malfutka [58]
A message telephone messagemessage  a communication usually brie that is written or spoken or signaled; "hesent a three-word <span>message"</span>
8 0
3 years ago
Read 2 more answers
The first-order rearrangement of CH3NC is measured to have a rate constant of 3.61 × 10–15 s–1 at 298 K and a rate constant of 8
netineya [11]

Answer:

The activation energy for this reaction, Ea = 159.98 kJ/mol

Explanation:

Using the Arrhenius equation as:

ln\frac {K_2}{K_1}=-\frac {E_a}{R}\times (\frac {1}{T_2}-\frac {1}{T_1})

Where, Ea is the activation energy.

R is the gas constant having value 8.314 J/K.mol

K₂ and K₁ are the rate constants

T₂ and T₁ are the temperature values in kelvin.

Given:

K₂ = 8.66×10⁻⁷ s⁻¹ , T₂ = 425 K

K₁ = 3.61×10⁻¹⁵ s⁻¹ , T₁ = 298 K

Applying in the equation as:

ln\frac {8.66\times 10^{-7}}{3.61\times 10^{-15}}=-\frac {E_a}{8.314}\times (\frac {1}{425}-\frac {1}{298})

Solving for Ea as:

Ea = 159982.23 J /mol

1 J/mol = 10⁻³ kJ/mol

Ea = 159.98 kJ/mol

7 0
3 years ago
A satellite orbiting above the earth needs no power source to keep orbiting the earth.
abruzzese [7]

Answer:

True

Explanation:

The earths gravitational pull keeps it consistent with its orbit.

8 0
3 years ago
Read 2 more answers
A box of books is in the floor. The following picture shows a push and a pull acting in the box.
nataly862011 [7]
Net force = 50 + 50 = 100 M
Since two forces act towards the same direction , total force should be their sum amd towards the same direction as the two forces
8 0
3 years ago
Oceans have a major effect on global climate because water in the oceans holds a large amount of heat. How does the heat absorpt
Goshia [24]

The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe. When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds, often vast distances. In fact, almost all rain that falls on land starts off in the ocean. The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.

i hope this if not sorry

3 0
3 years ago
Other questions:
  • Jane has four glasses of milk. The temperature and the amount of milk in each glass are shown:
    15·1 answer
  • To what extent do drugs benefit society (legal and illegal drugs - can include medication)
    8·1 answer
  • The difference in emf between the primary coil of a transformer and the secondary coil is directly related to the relative numbe
    9·1 answer
  • What is the net force on an object in either static or dynamic equilibrium?
    11·1 answer
  • How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?
    7·2 answers
  • 0.0003711 in scientific notation is
    12·1 answer
  • Which best describes a spontaneous process as it relates to the second law of thermodynamics? It destroys heat.
    14·2 answers
  • Express the answer to 6.51 x 107<br> divided by7.61 x 10<br> in scientific notation
    14·1 answer
  • A bicyclist travels at the speed of 25 kilometers per hour for 5 hours. How far does the bicyclist go?
    11·2 answers
  • the motion of a particle along a straight line is represented by the position versus time graph above. at which of the labeled p
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!