If a change is made to a system in equilibrium, the equilibrium will shift to oppose the change.

A child is sitting on the seat of a swing with ropes 10 m long. Her father pulls the swing back until the ropes make a 47º angle with the vertical and then releases the swing.

A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 232. kPa. The piston is now pulled up, expanding the gas, until the gas has a final volume of 29.0L.

Which region is also the spinal column region? vertebral scapular pelvic sternal

A plane flies along a straight line path after taking off, and it ends up 210 km farther east and 90.0 km farther north, relative to where it started. What is the plane's displacement? A. 300 km B. 141 km C. 230 km D. 120 km

A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.

An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Which describes the acceleration? 4 m/s2 in negative acceleration 4 m/s2 in positive acceleration 9 m/s2 in positive acceleration 9 m/s2 in negative acceleration

Two students walk in the same direction along a straight path at a constant speed-one at 0.90 m/s and the other at 1.90 m/s. •How far would the students have to walk so that the faster student arrives 5.50 min before the slower student? A.) 460s B.

During the process of accretion, each planet-in-the-making, or proto-planet, grew in size and mass. The amount of gravity for the proto-planets is best represented by which graph?

Theories and Laws. • How are they alike? • How are they different? • Can you explain why scientific theories will change over time? • Give an example of a scientific theory that has changed.

If the x-component of a force vector is 5.17 newtons and its y-component is 8.80 newtons, then what is its magnitude?