A swimmer can swim 4.00 km/h in still water. He heads south across a river that flows east at 2.00 km/h. The river is 0.500 km wide. His velocity wih respect to the ground is

A published hypothesis: O is accepted by the scientific community Oshould be tested by the scientific community does not need to be tested Obecomes a scientific law ?

Name two devices that use electromagnets. explain your purpose

How to know if this object will sink or float in a fluid?

Which statement supports Newton's first law of motion? A. Planets can change the direction of their own orbital path. B. Planets with more inertia will not be impacted by the Sun's gravity. C.

How is the pressure of a gas related to its concentration of particles?

What will happen to this current if a magnet is brought near the cord?

The kinetic energy of a sliding block came from the: kinetic energy of the string. kinetic energy of the board. gravitational potential energy of the block. gravitational potential energy of the mass on the hook.

A less-massive object is moving in the same direction as a more-massive object, but with a higher speed. They experience an inelastic collision. Describe the speed of the more-massive object after the collision.

At a given location in space, the magnetic field in an electromagnetic wave is increasing. How is the electric field changing at that same location? a. The electric field is increasing. b. The electric field is decreasing. c.

What determines the properties of an object