A scientist must only base his or her conclusions on observable evidence from investigation

Where are the magnetic field and force weakest in a magnet? near both poles of the magnet near the north pole near the center of the magnet near the south pole

A (n) 5.77 g bullet is fired into a (n) 2.32 kg ballistic pendulum and becomes embedded in it. The acceleration of gravity is 9.8 m/s 2. If the pendulum rises a vertical distance of 7.15 cm, calculate the initial speed of the bullet.

Why do some astronomers think pluto should not be called a planet?

When two objects push or pull on each other, which type of energy is being transferred? A:Chemical Energy B:Electrical Energy C:Mechanical Energy D:Sound Energy

Sue and Jenny kick a soccer ball at exactly the same time. Sue's foot exerts a force of 52.6 N to the north. Jenny's foot exerts a force of 112.8 N to the east. a) What is the magnitude of the resultant force on the ball? Answer in units of N.

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?

What are the SI units for specific heat capacity