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
Elden [556K]
3 years ago
14

Carbon-14 has a half life of 5730 years. Consider a sample of fossilized wood that when alive would have contained 24g of C-14 i

t now contains 1.5g. How old is the sample
Physics
1 answer:
kirza4 [7]3 years ago
6 0

Answer:

5732 years

Explanation:

hope it helps, if not im sorry

You might be interested in
A swimming pool, 10.0 m by 4.0 m, is filled with water to a depth of 3.0 m at a temperature of 20.2°c. if the energy needed to r
Tomtit [17]

You need to find the mass of water in the pool.
Find the volume (10 x 4 x 3) = 120 m3

Water has a density of 1000g/m3,so 120 m3 = 120 x 1000 = 120 000 kg

[delta]H = 4.187 x 120 000 x 3.4 (and the units will be kJ)

You then use the heat of combustion knowing that each mole of methane releases 891 kJ of heat so if you divide 891 into the previous answer, you will get the number of moles of CH4


8 0
3 years ago
Read 2 more answers
Find the image position for a picture placed 3.0 cm outside the focal point of a converging lens with a 4.0 cm focal length. a.
horrorfan [7]
<span>Answer: Using 1/f = 1/d' + 1/d ...(where d' object distance and d is image distance) 1/4 = 1/7 + 1/d 1/4 - 1/7 = 1/d 3/28 = 1/d d = 28/3 d = 9.33 cm</span>
5 0
3 years ago
Which statements best describe the second stage of cellular respiration? Check all that apply.
grandymaker [24]

Answer:

oxygen combines with small molecules. energy is released and it happens in the cytoplasm

Explanation:

7 0
3 years ago
Read 2 more answers
What is the net force on a truck if the force of friction is 31 N and the force of the engine is 79 N?
Evgen [1.6K]

Answer:

Fr = 48 [N] forward.

Explanation:

Suppose the movement is on the X axis, in this way we have the force of the engine that produces the movement to the right, while the force produced by the brake causes the vehicle to decrease its speed in this way the sign must be negative.

∑F = Fr

F_{engine}-F_{brake} =F_{r}\\F_{r}=79-31\\F_{r}=48[N]

The movement remains forward, since the force produced by the movement is greater than the braking force.

3 0
2 years ago
Your brother bikes 350 miles in 27 seconds how fast did he go
Harrizon [31]
His speed is exactly (350/27) miles per second ... about 46,667 mph. Wotta guy !
6 0
3 years ago
Other questions:
  • Greg is in a bike race. At mile marker four (out of ten), his speed was measured at 13.5 mph. Which best describes the measured
    15·2 answers
  • When was that last time you cried ? You can tell me
    6·1 answer
  • Reeti has a mass of 51.0 kg. The Gravitron, a ride that spins so fast that the floor can be removed without the riders falling,
    13·1 answer
  • A ball is dropped from rest from the top of a building. What force is responsible for th
    15·2 answers
  • Which two statements are true?
    10·2 answers
  • What PLACE is the 8 in in the number 38,341,097.54
    12·1 answer
  • What's is the origin of Neptune's moon Triton?​
    6·1 answer
  • Which of the following is a base?<br><br> A. Lemon Juice<br> B. Baking Soda<br> C. Vinegar
    5·1 answer
  • What is the mechanical advantage of this system?<br> А<br> 2<br> B<br> 3<br> C<br> 4
    10·1 answer
  • Please help with this :(
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!