Briefly describe how a sound wave is formed.

Which of the following types of radiation can penetrate through paper but not through wood? Alpha rays Beta rays Gamma rays Proton rays

Which scientist's work led to our understanding of how planets move around the Sun?

When work is done on an object, the object gains energy. true or false

Joel uses a claw hammer to remove a nail from a wall. He applies a force of 40 newtons on the hammer. The hammer applies a force of 160 newtons on the nail. The mechanical advantage of the hammer is.

A fighter plane lands on an aircraft carrier at a speed of 300 km per hour takes 25 seconds to come to rest. determine its landing speed in meters per second

Which of the following statements concerning Howard Gardner's multiple intelligences is not correct? A. Gardner is not interested in assessing levels of intelligence. B. Gardner has based his theory on research in various areas of psychology. C.

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.