A sample of radium-226 will decay to 1/4 of its original amount after 3200 years. What is the half-life of radium-226?

Found Answer: 1600

The magnetic field due to the loop always opposes the external magnetic field. (b) The flux due to the loop always has the opposite sign as the flux due to the external magnetic field.

Determine which law is appropriate for solving the following problem. What will be the new volume of a 250 mL sample of gas at 300 K and 1 atm if heated to 350 K at 1 atm? Law used:

How many significant figures does 2.000 have?

What instrument uses a magnetic field to magnify imags up to 100000000?

Las fuerzas electricas

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Acceleration is defined as the rate of change for which of the following? A. time B. velocity C. position D. displacement