Explain why the rust of an iron bar decreases the strength of the bar.

What do the 3 States of Matter look like?

What is the difference between V (peak voltage) and Vrms (root-mean-square) of AC voltage source?

What will oppose most forces and slow objects

A car accelerates from 30 km/hr to 65 km/hr in 30 seconds. What is it's acceleration?

Which profession is responsible for a planes design? A) Aerospace engineering B) Aerospace mechanic C) Pilot D) Flight attendant

What uses electricity

How do invasive species spread? identify three methods. Why do invasive species pose such a threat?

If earth somehow expanded to a larger radius, with no change in mass, how would you're weight be affected? How would it be affected if earth shrunk?

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors