Earth's magnetic field flips every

A. half million years

B. every other year

C. 100years

Which statement is true according to the kinetic theory

14 If the mass of one asteroid in space is 25,000 kg and the mass of another meteor is 40,000 kg, what is the gravitational force pulling them together if the distance between them is 10 m?

Determine the orientation, measured counterclockwise from the positive y axis, of the resultant force acting on the bracket.

How can you magnetize an item that is ferromagnetic? heat it spin it rub it with a soft cloth place it in a magnetic field

Which type of nuclear decay emits two protons and two neutrons? A. alpha decay B. beta decay C. cosmic decay D. gamma decay

In the system you're inspecting the damper motor isn't working, You decide to see if the damper-postion sensor us sending the proper signal to the which then signals the damper motor. A. heating coil B. duckwork c. energy source D. controller

Which of the following statements does not describe the structure of an atom? a. An atom has a small, dense center called the nucleus. b. Inside the nucleus of an atom are protons and electrons. c. Protons are positively charged sub-atomic particles.

A. Which skill related fitness component is your strongest and weakest?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N

Approximately how many kelvins are equal to 60 c? a. 289k b. 323k c. 333k d. 413k