Question

Charcoal from an ancient campfire has a ratio of 14C to 12C that is one- fourth that of new wood. About how old is the charcoal? The half- life of 14C is 5730 years.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Physics

Related Physics Q&A

Find answers to questions asked by students like you.

Q: At their closest approach, Venus and Earth are 4.20 × 1010 m apart. The mass of Venus is 4.87 × 1024...

A: Force exerted by venus on earth is,

Q: In the figure a nonconducting rod of length L = 8.42 cm has charge -q = -4.23 fC uniformly distribut...

A: (a) The linear charge density of the rod will be:

Q: The figure shows a rectangular array of charged particles fixed in place, with distance a = 33.7 cm ...

A: The distance between each charge, a = 33.7 cm = 0.337 mCharges shown in the array are multiples of, ...

Q: 287 CHAPTER 6 form flow at locations 1 and 2. Develop a relationship for the force Fp acting on the ...

A: Consider the figure given below.

Q: A batted baseball leaves the bat at an angle of 35.0 ∘above the horizontal and is caught by an outfi...

A: (a)The ball is making a projectile motion. The range and angle made by the projectile are given,henc...

Q: a top with radius 10cm, mass 2 kg has a string around the edge and is initially at rest. assume the ...

A: Consider the figure and observe that, force by the string acts tangentially. Therefore, the angle be...

Q: In the figure particle 1 of charge +6e is above a floor by distance d1 = 3.60 mm and particle 2 of c...

A: Its given that:

Q: Add 3685 g and 66.8 kg and express your answer in miligrams (mg)

A: We are converting here 66.8 kg to 66800 gm 

Q: A cheetah can accelerate from rest to a speed of 26.0 m/s in 4.25 s. What is its acceleration?

A: Given:Initial velocity of cheetah, u = 0 m/sFinal velocity of cheetah, v = 26.0 m/sTime taken, t = 4...

Q: A capacitor consisting of two parallel plates separated by 2.0 cm has a potential of 50 V on the top...

A: Electric field is defined as the  change in potential with respect to distance. write the expression...

Q: In the figure, horizontal scaffold 2, with uniform mass m2 = 29 kg and length L2 = 2.3 m, hangs from...

A: The expression from the moment of force applied at the point A is,Here, m1 is the mass of the first,...

Q: In a downhill ski race surprisingly little advantage is gained by getting a running start. This is b...

A: a)Newton’s equation for displacement is,

Q: you are driving home on a weekend from school at 55 mi/h for 110 miles. It then starts to snow and y...

A: First, we are converting time in minutes for easy calculation

Q: In the figure two tiny conducting balls of identical mass m and identical charge q hang from noncond...

A: Charge on both balls have the same sign, so force occurs between them is repulsive. Gravity force on...

Q: Two racing boats set out from the same dock and speed away at the same constant speed of 83.7 km/h f...

A: Given information: The speed of the blue and the green boat is the same and is given by 83.7 km/h, t...

Q: Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 10,700 kg. T...

A: To find:The mass of a fully loaded module is 10,700 kg. The thrust of its engines is 26,500 N. The g...

Q: If q=150mm and f=150mm, what is p equal?

A: Given that the image distance q=150mm, the focal length f=150mm. According to thin lens formula, the...

Q: A rod is lying on the top of a table. One end of the rod is hinged to the table so that the rod can ...

A: The equation for the magnitude of the torque is given by

Q: In the hydraulic press used in a trash compactor, the radii of the input piston and the output plung...

A: Given,

Q: A soft tennis ball is dropped onto a hard floor from a height of 1.90 m and rebounds to a height of ...

A: It seems that there are multiple parts in the question,In one session we are allowed to answer only ...

Q: A plane electromagnetic wave has a maximum electric field of magnitude 2.45 × 10-3 V/m. Find the max...

A: The equation for the magnetic field amplitude is given by,

Q: In the figure the capacitances are C1 = 1.2 µF and C2 = 4.4 µF, and both capacitors are charged to a...

A: When the capacitors are connected in parallel the total capacitance is the sum of the individual cap...

Q: If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from slidi...

A: Given: Radius, r = 85 mAngle = 15oFind; (a) The ideal speed, v.(b) The minimum coefficient of fricti...

Q: In the figure a small, nonconducting ball of mass m = 0.77 mg and charge q = 2.5 × 10-8 C (distribut...

A: The horizontal force balanced on the ball is,The vertical force balanced on the ball is,

Q: A wire with a resistance of 8.6 Ω is drawn out through a die so that its new length is 3 times its o...

A: Relation between resistance and resistivity is,

Q: Can you show how to work this?

A: Given:

Q: In a car lift, compressed air with a gauge pressure of 4.0 x 105 Pa is used to raise a piston with a...

A: Pressure is defined as the force per unit area.Write the expression for pressure.

Q: 12. The tub of a washer goes into its spin cycle, starting from rest and gaining angular speed stead...

A: Given: Case 1: when it starts from rest-Initial angular speed = 0Final angular speed = 5 rev/sTime, ...

Q: a child runs at 4.0 m/s and jumps onto a sled, initially at rest. If the child's mass is 36 kg, and ...

A: The conservation of linear momentum can be applied to the system. The total momentum of the system b...

Q: A scooter has wheels with a diameter of 120 mm. What is the angular speed of the wheels when the sco...

A: The radius of the scooter wheels is,Substituting the value,

Q: Chapter 29, Problem 021 Your answer is partially correct. Try again. The figure below shows two very...

A: From the symmetry of the wires, the net magnetic field at point P is,

Q: The half-life of iodine-131 (131I)(131I), an isotope used in the treatment of thyroid disorders, is ...

A: Write the relation between decay constant to the half life.

Q: In the figure, four long straight wires are perpendicular to the page, and their cross sections form...

A: According to question, four long wires perpendicular to the page have the same magnitude of current ...

Q: A water tower is a familiar sight in many towns. The purpose of such a tower is to provide storage c...

A: Mass of water stored in the reservoir is 7.16×5 kg, and density of water is 1000 kg/m3The volume of ...

Q: A solid, square pinewood raft measures 4.8 m on a side and is 2.70 m thick. What is the total mass o...

A: Given,

Q: What is the capacitance of a parallel-plate capacitor made up of two plates of area 4cm^2 separated ...

A: The capacitance of a parallel-plate capacitor

Q: An alpha particle(symbol a) having a mass 6.64x10^-27 kg and a charge +3.2x10^-19 C, is accelerated ...

A: Given:

Q: The figure shows two concentric rings, of radii R and R' = 2.54R, that lie on the same plane. Point ...

A: write the expression of electric field on the axis of  the small ring.

Q: A man is holding an 8.00-kg vacuum cleaner at arm's length, a distance of 0.550 m from his shoulder....

A: The weight of the vacuum cleaner is 8.00 kg, its distance from the shoulder is 0.550 m and it is hel...

Q: The acceleration due to gravity near the surface of the mars is about one-third of the value near th...

A: To determine: The speed of the rock when it hits the ground on Mars.Given Information: The gravitati...

Q: What magnitude net force is requred to accelerate to a 1200-kg car uniformly from 0 m/s to 27.0 m/s ...

A: The net force required to accelerate a car of mass 1200 kg is calculated using following steps:Given...

Q: In the figure, light is incident at angle θ1 = 38.0˚ on a boundary between two transparent materials...

A: a)Consider the refraction at interface between medium of refractive index n1 and air.Snell’s law is,

Q: With regards to an electric field how do you determine the magnitude and direction of the field at a...

A: The electric field at any point is the force experienced by a test charge at that point due to the g...

Q: 14. A container is filled to a depth of 20.0 cm with water. On top of the water floats a 30.0-cm-thi...

A: Absolute pressure at the bottom is,

Q: Density, density, density. (a) A charge -352e is uniformly distributed along a circular arc of radiu...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: A moonshiner makes the error of filling a glass jar to the brim and capping it tightly. The moonshin...

A: Given: deltaV/Vo = 6 × 10-3Bulk modulus = 1.7 × 109 N/m2Find: The force exerted by the moonshine per...

Q: 14.A crate of mass 10.0 kg is pulled up a rough incline with Man initial speed of 1.50 m/s. The pull...

A: a)Work done by gravity is,

Q: Can you show me this solution, I’m not sure how to work this problem.

A: Given:

Q: Estimate the widest stance you can take when standing on a dry, icy surface. That is, how wide can y...

A: A person put his step on Icy surface, assume the force in one step is F making an angle with the ver...

Q: A parallel-plate capacitor is formed of two square metal plates 10cm x 10cm, separated by a 2-mm- th...

A: Capacitance is,