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A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 0.94 kg sample of carbon from the wood has an activity of 2.10 103 decays per minute. Find the age of the charcoal in years. [Hint: Living material has an activity of 15.0 decays/minute per gram of carbon present.]
A loop of width 0.2m and length 0.8m, and resistance 200ohms is pulled through a magnetic field of 0.4 T at 0.2 m/sec. What is force necessary to pull the loop
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.8 m/s (96 mi/h) and is hit straight back at a speed of 48.4 m/s (108 mi/h). what is the average force exerted on the ball by the bat
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.370mm wide. What is the width of the central bright fringe
Compute the final temperature using the ideal gas law and van der Waals equations of state. Assume that Cvm = 3/2 R and the van der waals parameters for Argon are a = 1.355 dm6bar/mol2 and b = 0.0320 dm3/mol.
A simple circuit consists of a battery connected to a lightbulb. A current of 0.243 A runs for 64.5 min, What is the voltage of the battery
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm. An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm.
At time t=0 a grinding wheel has an angular velocity of 27.0rad/s, At what time does the wheel stop
Find the force on each side of the loop and the torque acting on loop.
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
What is the resolving power of the objective if it is used in an oil-immersion microscope with n oil = 1.45
What is the magnitude of the potential difference between two points that are 1.15 cm and 2.99 cm from a proton? Answer in units of V.
a skier of mass m is standing on a slope with an angle of elevation ø. After being given a tiny nudge, the skier slides down the slope, how much energy is lost while the skier slides down the incline
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