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
Feliz [49]
3 years ago
11

Earth's core is composed primarily of _____. -iron oxides and magnesium -silicon and iron -iron and nickel -magnesium and nickel

Physics
1 answer:
Shalnov [3]3 years ago
3 0

Iron & Nickel. There are also small doses of other unimportant garbage.

C is your answer. (Iron & Nickel)

You might be interested in
Yub87654d HELP there is this person trying to kid,.,nap,./, kids so if you see an account called Hernyana report there questions
Morgarella [4.7K]

Answer:

what???

Explanation:

7 0
2 years ago
A friend claims that there are just two forms of energy: kinetic energy and gravitational potential energy. What is wrong with y
Oksanka [162]

Answer:

D

Explanation:

There is a variety of many types of energies. Some of which are mechanical, thermal, electromagnetic, nuclear, chemical, sonic, and more.

7 0
3 years ago
What is this ???????????
babymother [125]
A, something to remember is that if the numbers are even the answer too will be even. Every time hope this helps :>
8 0
3 years ago
Read 2 more answers
What if you were a mother for a day boys and girls
Dominik [7]
I’m am a mother no drama !!!!

Boom
6 0
2 years ago
Suppose that placing 0.3 inch of lead in front of a gamma source reduces the count rate from 1045 cps to 573 cps. What is um^-1
Ainat [17]

Answer:

14.49 g/cm²

Explanation:

I = Io e^-(ux)

Where:

I = 573

Io = 1045

x = 0.3 inches and

rho = 11.4g/cm^3

Using the conversion constant

1 inch = 2.54 cm;

0.3 inches = 0.3 * 2.54 cm

0.3 inches = 0.762 cm

I/Io = e^-(ux), or say

Io/I = e^(ux), taking the In of both sides

ln(Io/I) = ux, making u subject of formula

u = 1/x * ln(Io/I)

u = 1/0.762 * ln(1045/573)

u = 1.312 * 0.6

u = 0.787

Next, we say that

u/rho = 0.7872/11.4 = 0.069

And finally, we make

1/(u/rho) to be our final answer

Inverse of the answer is = 14.49 g/cm²

Therefore, the um^-1 in g/cm^2? is 14.49

5 0
2 years ago
Other questions:
  • A resonance tube can be used to measured the speed of sound in air. A tuning fork is held above the opening of the tube and stru
    6·1 answer
  • What is the potential energy of a 3 kg rock sitting at the top of a 21 meter high cliff?
    8·1 answer
  • Your high-fidelity amplifier has one output for a speaker of resistance 8 Ω. How can you arrange two 8-Ω speakers, one 4-Ω speak
    5·1 answer
  • What tool do you use to measure the acidity of lemon juice?
    5·1 answer
  • A bullet is at rest. It travels a distance of 0.34m in a time of 0.0095 seconds. Calculate its acceleration.
    8·1 answer
  • the atoms in a sample are close together but can slide past one another. as the atoms lose energy, they move slower. the atoms b
    10·2 answers
  • What is the de Broglie wavelength for a proton with energy 50 keV? Due to the limitations of Canvas, please give the wavelength
    10·1 answer
  • how many meters would you have traveled after 90 minutes if you're average velocity is 4 kilometers per hour?​
    14·1 answer
  • Which electromagnetic wave type has the largest wavelength?
    5·1 answer
  • The photo shows a toy spring. What kind of energy does the toy have because of its shape?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!