A pure carbon archaeological artefact has an age of 24421 years and emits 14 electrons per minute. Find the activity of the artefact at the time it was made. Assume that the half-life of 14C is 5730 years. Enter your answer in Bq to 1 decimal place.

Q: 3. a) Find the broadcast wavelength of LIVE 88.5 FM, which broadcasts at a frequency of 88.5 MHz. 8…

A: Given:-  broadcasts at a frequency of f = 88.5 MHz.  The velocity of a radio wave is v =3.00 x 108…

Q: Ex. 35: Two coils are connected in series in one gap of a meter bridge an null point is obtained in…

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Q: Q-6: A 10 kg cylinder rolls along a horizontal floor so that the cylinder's center of mass has a…

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Q: Item 1 A radar station, located at the origin of xy plane, as shown in ( Figure 1), detects an…

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Q: Which of the following is the correct order of centripetal accelerations of satellites A, B, and C…

A: We know that centripetal acceleration = v2r, v is velocity and r is radius of orbit. Here, velocity…

Q: A rod 12.0 cm long is uniformly charged and has a total charge of -24.0 µC. Determine the magnitude…

A: According to the data L=12cm =0.12m Q= -24μC a = 36 cm =0.36m we need to find magnitude of the…

Q: A team of biologists are tracking the motion of a mountain lion. The lion walks north for 880…

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Q: 11. Which of the following is not a fundamental force? a) frictional force b) electromagnetic…

A: We know there are only 4 fundamental forces in nature. Which are : 1.Strong Force 2.Weak Force…

Q: Determine what motion will give the distance versus time graphs shown below. Your answer choices:…

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Q: Terrence is surveying a plot of forest land. He walks 65 meters east 210 meters south, 235 meters…

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Q: If the angle between two equal forces (F) is 90 degree, what is the magnitude of the resultant? O a.…

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Q: A box weighing 35 N is at rest on a table. The normal force acting on the box is _. zero…

A: Weight of the box = F F = 35 N Normal force is equal to the weight on the box

Q: Find the energy required to change the temperature of an 53000-L swimming pool by 7°C. Recall: 1…

A: Given:-  The water volume is V = 53000 L  1 Liter of water has a mass of 1 kg  The change in…

Q: The drawing shows two situations in which charges are placed on the x and y axes. They are all…

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Q: Problem 1.17 You are driving at 60 mph (-100 km/h). Your car's wheels have a radius of 35 cm. (a)…

A: Given:-  The speed of the car is v = 100 km/h  The radius of the wheel is r = 35 cm  Find:-  a) The…

Q: Why is a series arrangement not used for connecting domestic electrical appliances in a circuit ?

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Q: An ideal fluid flows through a pipe of circular cross-section made of two sections with diameters…

A: Givend1=2.5 cm]d2=3.75 cmas velocity∝1(diameter)2

Q: An Unidentified Flying Object (UFO) moving along a line with constant speed was sighted at (8, 9,…

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Q: A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m…

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Q: A stationary block has a charge of +6.0×10−8 C.  A 0.80 kg cart with a charge of +4.0×10−8 C is…

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Q: A rocket's position (in meters) as a function of time (in seconds) is given below. Round all answers…

A: According to the given data r = (t2-3t) i + (t3+3) j we need to find velocity ,direction and…

Q: Vector C has a magnitude of 23.4 m and points in the -y- direction. Vectors A and B both have…

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Q: he x component of vector A is 8.7 units, and its y component is -6.5 units. What is the magnitude of…

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Q: Newton’s laws of motion and gravity were among the first to convincingly demonstrate the underlying…

A: There is currently no proof that underlying simplicity and unity will always be found in new…

Q: Problem 1.9 A block of mass M is on an inclined plane of angle with a coefficient of sliding…

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Q: A 10.0 nC charge is located at position (x, y) = (1.0 cm, 2.0 cm). At what (x, y) position is the…

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Q: If 2 kg of metal is heated from 15 to 19 by adding 55700 J of heat, find c (the heat capacity or…

A: Given data: The mass, m=2 kg The rise in temperature,  △T=19-15=4 °C The heat is H=55700 J

Q: two masses m2=65kg and m1=81kg are attached by a massless rope over a massless, frictionless pulley.…

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Q: Show your solution for each item. 1. A car travels in the +x-direction on a straight and level road.…

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Q: Consider a point charge q located outside a closed surface as sketched in blue in the figure below.…

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Q: The point charges in the figure have the following values 12.1pCq+6.3µC, g=-0.89C. Suppose that the…

A: The charge q1=+2.1μC The charge q2=+6.3μC The charge q3=-0.89μC The magnitude of the resultant force…

Q: Which allows you to jump the farthest? Why? Only using your ankles? Knees and ankles? Hips Knees…

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Q: 2. While training for the upcoming UAAP season, a 60-kg athlete does 30 pushups in a minute,…

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Q: 8. In front of a car traveling at a constant speed of 90 km/h, a truck is driven at a speed of 60…

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Q: An object has a mass of 4 kg and is moving with acceleration a= 5i -j. What is the magnitude of the…

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Q: A weather balloon is designed to expand to a maximum radius of 23 m at its working altitude, where…

A: Given:-  The maximum radius of the balloon is r1 =23 m  The pressure P1 = 0.030 atm and temperature…

Q: The absorption coefficient of active material is 0.75 1/cm when the transmitted intensity is 60%…

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Q: An airplane is traveling in the direction 20o west of north at 500 ​km/hr. Find the component form…

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Q: Two small beads having positive charges q1 = 29q and q2 = q are fixed at the opposite ends of a…

A: Given: Charges q1=29q, q2=q, Length d=1.50 m. Required: Position x for which the third bead in…

Q: hi, thank you for solving this for me. could you write out the last few lines of the answer…

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Q: . Which of the following statements is not an assumption of the Drude free electron model? (a)…

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Q: 4. Two carts, initially at rest, are pushed apart when a compressed spring attached to one of the…

A: Initially, both carts at rest. So, the initial velocity of both carts will be zero. uA=0uB=0

Q: A grandfather clock is controlled by a swinging brass pendulum that is 1.4 m long at a temperature…

A: Given:-  The length of the pendulum is L = 1.4 m at the temperature T1=34oC. Find:-  a) What is the…

Q: F (t) = (0.290 N) sin (27 ft) on a weakly damped spring oscillator with mass 6.77 kg, spring…

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Q: 26. The total energy of a harmonically oscillating object is 3.10-5 J, and the maximum force acting…

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Q: Write the material that you use to find out the value of refractive index of a prism. What is the…

A: We have to find refractive index of the material.

Q: 3) In simple harmonic motion, when is the speed the greatest? A) when the magnitude of the…

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Q: A student sees a newspaper ad for an apartment that has 1330 square feet (ft2) of floor space. How…

A: According to the question student sees in a news paper add that,  Area of an apartment, A = 1330 ft2…

Q: In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force…

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Q: ow fast are you going if you are in a car that has a mass of 3000kg and experiencing uniform…

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.