Which of the following is an example of a pure substance?

A. a sample of oxygen gas

B. a solution of sugar water

c. a mixture of pasta and sauce

D. an alloy of iron and carbon

How much work is needed to lift a 3 kg mass a distance of 0.75 m?

A mother brings her baby to the emergency room because he has lost fluid through diarrhea and vomiting for two days. The staff weighs the baby and finds that he has lost 2 lbs.

Why should you try to avoid food containing corn sugar dextrose or sucrose

How is momentum conserved in a system in which two satellites connect? Question 19 options: The one satellite has all the momentum before they connect, and then afterwards they share it.

Which are characteristics of a healthy relationship? Check all that apply. -mutual respect and trust -control and manipulation -jealousy and distrust -genuine affection -separate identities -open communication

Which interaction of nature is weakest? a. strong c. electromagnetic b. weak d. gravitational

Two workers pull horizontally on a heavy box but one pulls twice as hard as the other. The larger pull is directed at 25.0 west of north and the resultant of these pulls is 430.0N directly northward.

What would happen to an object in orbit without gravity pulling down?

The waters of a lake will be most layered in which season A. winter B. spring C. summer D. fall

Which of the following is an example of an archery contestant showing good precision but poor accuracy? O A. Hitting a bulls-eye once and then missing a second time O B. Hitting a bulls-eye every time O C.