Fast flowing water wears down the surface of a rock. This is an example of

mechanical weathering

chemical weathering

erosion

molecular weathering

An object experiences an impulse, moves and attains a momentum of 100 kg·m/s. If its mass is 50 kg, what would its velocity be?

When you mix two gases what can you predict about the conservation of volume in this case?

What is tge importance of Maurice Wilkins contribution or discovery today?

How do base-isolators, the rubber and steel pads under some buildings, reduce earthquake damage?

When you return to Earth after a space mission, you will have aged A. the same as someone who remained on Earth during your mission B. the same as you would if you remained in space C. slightly more than the person who remained on Earth D.

Which equation represents the total energy of a system?

The weight of a 100 N laser printer is spread over 0.5m2. What is the pressure it exerts? A) 50 N/m2 B) 200 N/m2 C) 500 N/m2

Comparing and contrasting ionic and covalent bonds?

Elevation above sea level is called

The train traveled 500 kilometers north to Odessa in 2 hours. What's the train's speed? What is the velocity?