What wave is used reflecting from the ionosphere?

Explain why photosynthesis is important for the survival of all living organisms in an ecosystem

What is electronics?

A wind blowing across the ocean will create a current in which direction? also not sure on the subject thing for this

What would happen if the moon took 24 hours to spin on its axis?

A box of mass 22 kg is at rest on a flat floor. The coefficient of static friction between the box and floor is 0.37. What is the minimum force needed to set the box in motion across the floor?

What is not a factor that affects the viscosity of magma?

While driving his 600-kg ultra-compact electric car, a distracted driver starts crossing a drawbridge. Not realizing that the drawbridge is about to open, he ends up in the river below with his car.

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire