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
svet-max [94.6K]
3 years ago
10

If a 4000 gram sample has a half-life of 1 million years and has 500 grams of radioactive parent isotope left how old is it

Physics
1 answer:
Arisa [49]3 years ago
4 0
3 million years

Happy to help
You might be interested in
If a plane is moving at a constant velocity what is happening to the acceleration?
quester [9]
The plane is not accelerating.

Hope this helps!
4 0
3 years ago
Read 2 more answers
A motorcycle stunt driver zooms off the end of a cliff at a speed of 41.9 meters per second. If he lands after 1.62 seconds, wha
tiny-mole [99]
Of the cliff?

Projectile motion
In the problem we are asked to find a height of certain cliff when a motorcycle stunt driver zoom out horizontally at the end the cliff at an initial velocity. So we will use one of the kinematics equation for projectile motion,

y
=
v
o
y
t
+
1
2
g
t

where
v
o
y
is just equal to zero since we can assume that the driver zooms out horizontally,
g
=
9.8

m
/
s
2
and
t
is time after
8 0
3 years ago
One mol of a perfect, monatomic gas expands reversibly and isothermally at 300 K from a pressure of 10 atm to a pressure of 2 at
Zolol [24]

Answer:

Explanation:

Given

1 mole of perfect, monoatomic gas

initial Temperature(T_i)=300 K

P_i=10 atm

P_f=2 atm

Work done in iso-thermal process=P_iV_iln\frac{P_i}{P_f}

P_i=initial pressure

P_f=Final Pressure

W=10\times 2.463\times ln\frac{10}{2}=39.64 J

Since it is a iso-thermal process therefore q=w

Therefore q=39.64 J

(b)if the gas expands by the same amount again isotherm-ally and irreversibly

work done is=P\Delta V

V_1=\frac{RT_1}{P_1}=\frac{1\times 0.0821\times 300}{10}=2.463 L

V_2=\frac{RT_2}{P_2}=\frac{1\times 0.0821\times 300}{2}=12.315 L

\Delta W=1\times (12.315-2.463)=9.852 J

\Delta q=\Delta W=9.852 J

\Delta U=0

8 0
3 years ago
a wave in a rope is traveling at 6 m/s and at a frequency of 2 Hz. what is the wavelength of the wave producced
Tems11 [23]

Answer:

3

Explanation:

4 0
3 years ago
Denise is conducting a physics experiment to measure the acceleration of a falling object when it slows down and comes to a stop
77julia77 [94]

Answer: The answer is D. (9.8 m/s2)

Explanation:

7 0
3 years ago
Other questions:
  • What is potential energy of a 10.0 kg weight suspended 3.0m above the ground?
    13·1 answer
  • Convert 11 ppm into a percent
    11·1 answer
  • State three properties of any visible object in the universe that one can determine by spectroscopy
    14·1 answer
  • Por que no céu sem nuvens a lua nova não é visivel e a lua cheia aparece em grande destaque?
    12·1 answer
  • Can a particle moving with instantaneous speed 3.00 m/s on a path with radius of curvature 2.00 m have an acceleration of magnit
    15·1 answer
  • A hydrogen line in a star's spectrum
    9·1 answer
  • Explain why it is easy to slip on a floor that is wet please, I need this answered now if anyone can.
    7·2 answers
  • Explain why it is important that the balloon is made from an electrical insulator.
    13·1 answer
  • 25 POINTS please help!
    6·2 answers
  • Why is the sun not the major factor in the tides?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!