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
Stells [14]
3 years ago
11

It is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g / metric ton. A metric ton i

s 1000 kg. At this concentration, what mass of uranium is present in 1.2 mg of the earth's crust?
Physics
1 answer:
timama [110]3 years ago
7 0

Answer:

The mass of Uranium present in a 1.2mg sample is 4.8 \cdot 10^{-6}\,mg

Explanation:

The ration between Uranium mass and total sample mass is: \frac{4g}{1000kg} =\frac{4g}{1000000g}=\frac{1}{250000}

For a sample of mass 1.2 mg, the amount of uranium is:

1.2\, mg \cdot \frac{1}{250000}=4.8 \cdot 10^{-6}\,mg

You might be interested in
In a double-slit experiment, the slits are illuminated by a monochromatic, coherent light source having a wavelength of 609 nm.
Ray Of Light [21]

Answer:

\Delta x = 3.65 \mu m

Explanation:

As we know that the sixth order maximum will have path difference given as

\Delta x = N\lambda

here we know that

N = order of maximum

\lambda = 609 nm

now we have

N = 6

so we know that

\Delta x = 6(609 nm)

\Delta x = 3.65 \mu m

6 0
3 years ago
You have a concave mirror of focal length 20 cm. You want to obtain a real image of double the
ExtremeBDS [4]

Between centre of curvature and principal focus.

6 0
2 years ago
What is the matching nitrogen base sequence for the gene below?
grigory [225]

Answer:

A

Explanation:

T-G-T is the answer .

the matching Nitrogen base sequence for gene ATC is A

6 0
3 years ago
The idea is to get as much EMF produced from the sprinter running through it. If you were the Olympic coach on a year when there
never [62]

Answer:

the greater the speed, the greater the electromotive force

* The metal pole must be parallel to the field

* you must keep the ball of the field

Explanation:

To determine the advice to the runners, let's use the Farad equation to and

           fem = -N \frac{ d \phi}{dt}  = -N \frac{ B A Cos \theta }{dt}

how the runners are moving

                 fi = B l x

            fem = -N B l v

therefore the advice we can give are:

* the greater the speed, the greater the electromotive force

* The metal pole must be parallel to the field

* you must keep the ball of the field

3 0
3 years ago
This wave, in total, is 30m. What is it's wavelength? *<br> Your answer
Westkost [7]

wavelength = d / number of Oscillation

this implies that wavelength = 30/3= 10

number of wavelengths = 10

8 0
2 years ago
Read 2 more answers
Other questions:
  • How to measure the speed of sound in air?
    9·2 answers
  • Garrett Hardin's "Tragedy of the Commons" describes the tendency of people to overuse publicly-owned natural resources until the
    11·1 answer
  • Two common ions of manganese are Mn2+ and Mn3+. Which binary ionic compound is likely to form? A) Mn2N3 B) MnBr4 C) MnCl D) MnO
    11·2 answers
  • HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • I need help plz and thank you❤
    13·1 answer
  • A box weighs 100N and its base area of 2 m2. What pressure does it exert on the ground?
    8·1 answer
  • The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorous and oxygen act together as on
    5·1 answer
  • URGANT!!!!!!! NEED ANSWERS TODAY!!!!
    6·1 answer
  • What is the mechanical advantage of a lever that is 20 meters
    13·2 answers
  • Jasmine makes a note card about series circuits. she records the points shown. a 2 column table with 1 row. the column on the le
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!