Which does not contain a lens?

eyeglasses

mirror

microscope

a floodlight

Why can bees fly? this is for my physics class

Jay rides his 2.0-kgkg skateboard. He is moving at speed 5.8 m/sm/s when he pushes off the board and continues to move forward in the air at 5.4 m/sm/s. The board now goes forward at 13 m/sm/s. Part APart complete Determine Jay's mass.

What causes an eclipse of the sun?

For a circuit shown in the figure, all quantities are accurate in 3 significant figures. What is the power dissipated in 2-ohm resistor?

What are the uses of dimension

Describe the position of earth moon and sun during a solar eclipse

What is an output force? a. the force a person applies to a simple machine b. the force a simple machine applies to an object c. the net force on a system d. the applied force on a system

Would iron and carbon from metallic bonds

How many joules does a shortbread cookie have

What happens to frequency when an object is moving towards you?