Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h?

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Which one of the following is a double-displacement reaction? ~There can be more then one answer~ A. 2H2 (g) + O2 (g) → 2H2O (g) B. 2H2O (l) → 2H2 (g) + O2 (g) C. NaOH (aq) + HCl (aq) → NaCl (aq) + HOH (l) D.

Why shouldn't you screw a 150 W light bulb into a 60W socket? (in physics terms)

How are conduction and induction alike and how are they different?

Waves bounce back when they meet a surface. This phenomenon is called ...

How many million Christmas trees were sold in the year 2000?

A volleyball player hit a ball with a mass of 0.25 kg. The average acceleration of the ball was 15.5 m/s². How much force did the volleyball player apply to the ball? A. 3.87 m/s² B. 62.0 m/s² C. 3.87 N D. 62.0 N

If a substance or object has the ability to do work, then it has

What is beach nourishment

Did sodium lose electr on or gain

For the vectors in the figure, with a = 12, b = 9.0, and c = 15 what are (a) the magnitude and (b) the direction of a * b, (c) the magnitude and (d) the direction of a * c, and (e) the magnitude and (f) the direction b * c?