Modern nuclear bomb tests have created an extra high level of 14C in our atmosphere. Suppose that future archaeologists date samples from our era, but do not know about this testing

Will their dates be too young, too old, or still correct? If correct they are correct, why?
A) too young
B) too old
C) correct, because 14C from bomb tests is different from that produced naturally
D) correct, because modern biological materials do not gather 14C from bomb tests


Answer: A

Physics & Space Science

You might also like to view...

Rotational Dynamics: A 375-g stone hangs from a thin light string that is wrapped around the circumference of a frictionless pulley with a moment of inertia of 0.0125 kg ? m2 and a radius of 26 cm. When the stone is released, the stone accelerates downward and the pulley rotates about its axis as the string unwinds.(a) What is the magnitude of the acceleration of the stone?(b) What is the tension in the string?

What will be an ideal response?

Physics & Space Science

What do we mean by a geocentric model of the universe?

A) a model of the Milky Way Galaxy that has our solar system located at its center B) a model designed to explain what we see in the sky while having the Earth orbit the Sun C) the name given to sphere-shaped models that show all the constellations as they appear in our sky on the celestial sphere D) a model designed to explain what we see in the sky while having the Earth located in the center of the universe

Physics & Space Science

Which of the following has the largest momentum relative to Earth?

A) a tightrope walker crossing Niagara Falls B) a pickup truck speeding along a highway C) a Mack truck parked in a lot D) a dog running down the street

Physics & Space Science

A 2.4-kg ball falling vertically hits the floor with a speed of 2.5 m/s and rebounds with a speed of 1.5 m/s. What is the magnitude of the impulse exerted on the ball by the floor?

a. 9.6 N s b. 2.4 N s c. 6.4 N s d. 1.6 N s e. 1.0 N s

Physics & Space Science