What makes sinkholes form?

Which of the following is a scalar quantity A. Distance B. Displacement C. Velocity D. Acceleration

Is the measurement of the density of a substance as compared to water. A liquid gravity B precise gravity C specific gravity D ideal gravity

If a atom loses a neutron what happens

A ray of monochromatic light having a wavelength of 4.00 x 10-7 meter in air passes from air through Lucite and then into air again. 1) Calculate the frequency of light in air. 2) Identify the color of the light.

The materials that are changed in a chemical reaction are called A. reactants B. coefficients C. products D. none of the above

Does the temperature increase during melting yes or no

Is this statement true or false? The next generation of nuclear power plants being built in California and South Africa are even safer and more efficient than previous generations of power plants.

Part C At what speed does the wreckage move if one car was driving north and one east? Express your answer to two significant figures and include the appropriate units. ! HA C ? Value Units Submit Request Answer Provide Feedback

Which person below is experiencing a delusion? A. Imani, who reads a lot and thinks she will go to an Ivy League school O B. Nia, who thinks that she is the daughter of the president and an extraterrestrial O C.

Large amounts of water that quickly infiltrate soil on a sloped surface can A. slow down the effects of mass movement by making the soil thicker and more resistant to flow B. hold soil particles together and reduce the stress on the soil C.