Which machine would be an alternative to lifting a crate with a pulley?

a. doorstop

b. ramp

c. ax

d. screw

Describe the core-mantle-crust structures of the terrestrial worlds. What is differentiation? What do we mean by the lithosphere? How does lithospheric thickness vary among the five terrestrial worlds?

Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. What experimental evidence led to the development of this atomic model from the one before it? A.

Which object has the greatest inertia? * 6-kg bag of feathers 5-kg rock 8-kg bowling ball 7-kg bag of groceries

What happens when new information from an experiment produces results that partially support a theory?

What would happen to the speed of a sound wave if it moved from a cooler room to a warmer one

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the sphere had a hole in it that allowed the water to leak out slowly?

Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor when its total mechanical energy is 41.70 J? Round to the nearest number.

Which of the following is the best description of a graph? A. Equations that can be plotted B. A representation of an equation C. Independent and dependent variables D. x and y lines

Which of the following statements concerning Howard Gardner's multiple intelligences is not correct? A. Gardner is not interested in assessing levels of intelligence. B. Gardner has based his theory on research in various areas of psychology. C.

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)