Which terms refer to the smallest pure substances? A. mixtures and alloys B. molecules and atoms C. elements and isotopes D. metals and nonmetals

Paramedics arrive on the scene of a high school baseball game. The pitcher, after being struck in the left temple with a line drive, was knocked unconscious. Now the paramedics note the player to be sitting up on the mound and talking.

When ironing clothes, the primary method of heat transfer is

States that momentum cannot be created or destroyed

Is darkness matter?

A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top, which has a height of 3 meters. What is the efficiency?

When a certain isotope, such as U-238, is hit by a neutron, it will always split into the same smaller nuclei. true or false?

A person walks 7 feet east stops and walks 7 feet west

Using the drop-down menus, choose the right government service to complete each sentence. Providing a free public education for all children is an example of supporting. Fighting fires is one way in which the government ensuresfor citizens.

A galilean telescope adjusted for a relaxed eye is 36cm long. If the objective lens has a focal length of 40cm, what is the magnification?

If a car goes along a straight road heading east and speeds up from 45 ft/s to 60. ft/s in 5 sec, calculate the acceleration