Your assessment tools should you determine

a. a child's developmental growth and the effectiveness of your setting.
b. the child's progress and areas of concern.
c. the effectiveness of your environment and instruction.
d. your goals for instruction

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.