What is the age of the charcoal sample
A current 1.00 g sample of carbon shows 921 disintegrations perhour. If 1.00 g of charcoal from an archeological dig in alimestone cave in Slovenia shows5.50 x 103 disintegrations in 25.2 h, what is the age of the charcoal sample?
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A simple single lens camera (biconvex lens) is used to photograph a man 1.5 m tall who is standing 5.0 m from the camera. if the mans image fills the length of a frame of film (35mm) what is the focal length of the lens?
The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 8% per day. Find the mass of the sample after six days.
Using triangles to construct the polygon and an appropriate double-angle formula, determine the formula of the area of the n-sided polygon as a function of R and n, i.e., A = f(R,n).
The orbital speeds of the planets are determined to be 42.1 km/s and 56.4 km/s. The slower planet's orbital period is 7.93 years. (a) What is the mass of the star? (b) What is the orbital period of the faster planet, in years?
car weighing 3,210 pounds is on a driveway inclined 20.2 deg to the horizontal. Neglecting friction, find the magnitude of the force parallel to the driveway that will keep the car from rolling down the hill.
The rate law for a reaction, 2A + B --arrow-- C, is rate = k[A][B]. What is the effect on the rate if the concentration of A is held constant while the concentration of B is doubled?
In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, assume the radius of the orbit is 5.29 x 10-11 m. (a) Find the magnitude of the electric force exerted on each particle.
Two identical conducting small spheres are placed with their centers 0.395 m apart. One is given a charge of -12.0 nC and the other a charge of -15.0 nC. (a) Find the electric force exerted by one sphere on the other.(magnitude)
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult