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An archeological specimen containing 10.2 gram of carbon has an activity of 0.8 Bq. Evaluate how old is the specimen?
(in years)
question1two cars drive on a straight highway. at time t0 car 1 pass mile marker 0 travelling due east with a speed of
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, how much work does the tension force do on Magnus
an earthquake emits both s waves and p waves which travel at different speeds through the earth. a p wave travel 9000
A piece of metal with a mass of 3.8 kg and density of 1808 kg/m3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the piece of metal
a grandfather clock is controlled by a swinging brass pendulum that is 1.1 m long at a temperature of 25degc.a what is
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 5.20
a child throws a penny off of the eiffel tower h 324m with a downward velocity of magnitude v0 13 ms. find the speed
how long does it take light to travel through a 6.73 mm thick piece of window glass? through what thickness of water
A space station, in the form of a wheel 184 m in diameter, rotates to provide an "artificial gravity" of 7.40 m/s2 for persons who walk around on the outer rim. Find the rotational frequency of wheel (in revolutions per minute) that will produce t..
The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. what average current is required to vaporize the water
A step-down transformer produces a voltage of 7.0V across the secondary coil when the voltage across the primary coil is 120V. What voltage appears across the primary coil of this transformer if 120V is applied to the secondary coil?
Two slits spaced 0.280mm apart are placed 0.640m from a screen and illuminated by coherent light with a wavelength of 680nm. What is the distance on the screen from the center of the central maximum to the first minimum
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