The half-life of carbon-14 is 5370 years. The carbon-14 levels in a fossil indicate that 6 half-lives have passed. How old is the fossil?

32,220 years

75,200 years

50,000 years

35,000 years

Terry is convinced that heating peanut butter will increase its mass so that it covers more bread. Is he correct? A. No, mass is only equal to temperature B. No, heating matter does not affect mass C. Yes, mass is directly relates to temperature D.

A 39.5-cm-focal-length converging lens is 28.0 cm behind a diverging lens. Parallel light strikes the diverging lens. After passing through the converging lens, the light is again parallel. What is the focal length of the diverging lens?

I have a bag that contains 976 mL of air at room temperature (25 oC) and has a pressure of 795 torr. If I ascend a mountain and the bag does not break, what is the volume in liters (L) when the pressure is 553 torr and the temperature is 10. oC?

Heat is transferred at a rate of 2 kW from a hot reservoir at 800 K to a cold reservoir at 300 K. Calculate the rate at which the entropy of the two reservoirs changes and determine if the second law is satisfied

Which region of the electromagnetic spectrum has the longest wavelength?

Why is it important to balance a chemical equation? A. It is not important to balance a chemical equal B. To make sure you have the correct products C. To make sure you have the correct reactants D. To obey the law of conservation of mass

The presence of icicles hanging off the eaves of a wood-framed structure is most likely due to: heavy snow followed by a thaw. improper insulation in wall cavities. use of a poor-quality roof sheathing material. lack of proper roof ventilation.

Both gravitational potential energy and kinetic energy depend on

How much work is done when a 105 g tomato is lifted 19.2 m?

Suppose a body has a mass of 60 kilograms and a velocity of 2 meters per second upward. What is the linear momentum?