What is the sig fig of 200

One of two nonconducting spherical shells of radius a carries a charge Q uniformly distributed over its surface, the other carries a charge - Q, also uniformly distributed. The spheres are brought together until they touch. A.

What role does yeast play in our lives

A constant current is sent through a helical coil. the coil a. tends to get shorter explain. b. tends to get longer c. tends to rotate about its axis d. produces zero magnetic field at its center e. none of the above

A snail can move approximately 0.30 meters per minute. what distance can the snail cover in 15 minutes?

How much net force is required to accelerate a 0.5 kg toy car, initially at rest to a velocity of 2.4 m/s in 6s?

An object's weight is equal to its buoyant force in water. What would you expect to happen when the object is placed in water? Explain your reasoning.

What is the name of the german scientist that proposed the theory of continental drift

Trucks 1 and 2 are traveling at the same constant velocity but truck 1's energy due to motion is two times less than that of truck 2. This is because Truck 1's mass is:

Why do the densities of most substances decrease with an increase in temperature?

Consider two planets in space that gravitationally attract each other if the mass of one of them stays the same and the mass of the other is doubled AND the distance between them is doubled, then the force between them changes by what factor? A.