How many electrons are in the isotope U-238?

A golf ball is driven from the tee with an initial speed of 52.0 m/s and rises to a height of 24.6 m. What is the speed when it is 8.0 m below its highest point?

The gravitational force between Earth and a 700 kg spacecraft is 759 N. What is the altitude of the spacecraft above the Earth’s surface?      

A train traveling at a constant speed rounds a curve of radius 235 m. A lamp suspended from the ceiling swings out to an angle of 72.5° (with respect to the horizontal) throughout the curve. What is the speed of the train which is the same as the speed of the lamp?  

The Bach archive has

Which of the following does NOT characterize the oratorio?

In the first movement of Vivaldi’s Spring, you can hear barking dogs and bagpipes.

Where is Johann Sebastian Bach buried?

Vivaldi’s Spring is a concerto for horn and string orchestra.

Who composed the ROYAL FIREWORKS and WATER MUSIC?