8) Studies have shown that wider highway lanes lead to fewer accidents. Which factor most likely prevents states from widening roads to double lane sizes? A) Cost Eliminate B) Technology C) Speed limits D) Driver confusion

What happens if the polar jet stream shifts to bring air from the north farther south

1. if an egg has a mass of. 1k and its dropped from a height of 5 meters, calculate its potential energy at the top 2.

A vehicle moves in a straight line with an acceleration of 4 km/h2. By how much does the speed change each second? Answer in units of km/h.

What type of system allows matter and energy to enter and exit

A body is accelerated continuously. What is the form of the graph? a cubic b inverse c linear d quadratic

When blue light of wavelength 450 nm falls on a single slit, the first dark bands on either side of center are separated by 45.0

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.