Cobalt-60 has a half life of 5.25 years. If you started with a 40 gram sample of pure cobalt-60, how many grams of cobalt-60 would remain after 10.5 years?

There are 2.5 cm in a inch if a necklace is 16 inches long how long is it measured in centimeters

Understand Key Concepts Which is NOT a fluid? A. helium B. ice C. milk D. Water

Which statement is true about the atoms in helium gas? A. They have strong attractions to one another. B. They are not closely packed. C. They are arranged in an orderly pattern. D. They travel in circular paths.

Explain the difference between energy and powerand how they are related to work. Give examples ofeach.

Two capacitors, C1=5700pF and C2=3000pF, are connected in series to a 9.00 V battery. The capacitors are later disconnected from the battery and connected directly to each other, positive plate to positive plate, and negative plate to negative plate.

For resonance to occur, the object must experience a frequency equal to its what? amplitude period wavelength natural frequency

Rasheed runs a football 10 meters east, turns and runs the football 6 meters west. If his velocity during this run is found to be 3 meters/second, how long does this take Rasheed to complete this run?

What is the approximate weight of a 20-kg cannonball on the moon if the acceleration due to gravity is 1.6m/s^2

A man consumes 2245 kcal of food in one day, converting most of it to maintain body temperature. If he loses half this energy by evaporating water (through breathing and sweating), how many kilograms of water evaporate?

If an eagle and a bumblebee are traveling at 8km/hr which has more momentum?