Based on the tug of war pictured below, what is the net force?

–190 N
10 N
–10 N
190 N

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?