Write a paragraph that explains how you would measure the mass of a pencil. Refer to the words in the Word Bank as you write your paragraph. Word Bank: Balance, Graduated cylinder, Heavy, Light, Ounce, Ruler, Standard mass, and Weight.

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)