Determine the mechanical energy of this object: a 1-kg ball sits on a 10-meter high cliff.

a. 98 J

b. 10 J

c. 980 J

d. The ball isn't moving, so the mechanical energy is zero.

The concentration of a dilute aspirin solution is 0.000529 m. standard solutions of this compound were used to prepare a beer/'s law plot which gives a slope of 1550.7 m-1. what is the expected absorbance value for the aspirin solution?

The direction towards the headwaters of a stream is called? A. tributary B. headwater C. downstream D. upstream

If an object has two forces acting on it how can the next force equal 0

What effect does distance have on the strength of the force of gravity

From Earth, the moon looks like it changes shape. This is caused by the moon's: gravitational pull tilted axis rotation revolution

When molten rock undergoes crystallization above ground, what type of rock results? a. intrusive igneous rock b. extrusive igneous rock c. metamorphic rock d. sedimentary rock

A 150ml sample of hydrochloric acid completely reacted with 60.0mL of a 0.100 M NaOH solution. What was the original concentration of the HCl solution

Rearrange in to a quadratic 5.333 = (0.6 + 2p) ² / (0.135 - p)

How hot would a 2.3 L balloon have to get to expand to a volume of 3.0 L? Assume the initial temperature of the balloon is 24 °C, and that the pressure inside the balloon remains constant. A. 3 K B. 42 K C. 128 K D. 390 K

Which pair of nitrogen bases will form a bond in a DNA molecule? a. cytosine and adenine b. adenine and thymine c. guanine and thymine d. thymine and cytosine