Today earths magnetic field is losing approximately 7 percent of its strength every 100 years. If the strength of earth magnetic field at its surface is 0.5 gauss today, what will it be 100 years from now?

Which one of the following is the weakest electrical conductor? A. a sheet of aluminum foil B. a cup of orange juice C. a metal lunchbox D. a rubber ball

Two gliders are on a frictionless, level air track. Both gliders are free to move. Initially, glider A moves to the right and glider B is at rest. After the collision, glider A has reversed direction and moves to the left.

Examples of a scalar

Answer the answers that you know. Answer Each One with The inner planets and the outer planets. 1. How close it is to the sun? 2. Length of the time to orbit the sun. 3. If they have moons, how many? 4. Describe the Surface And Atmosphere. 6.

Does the horizontal motion of the projectile depend on the vertical motion?

a group of elements that stretch bend and conduct heat and electricity

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Which of the following are products of cellular respiration? Sunlight Oxygen ATP Water Carbon Dioxide

Do magnetic field lines ever start or end anywhere?

What effect do oceans have on the temperature of coastal areas? A. Ocean breezes warm the coastal land constantly. B. Ocean currents always cool a coastline. C. Ocean winds prevent extremes of temperature on coastal lands. D.