What is the name of the upward force that enables a bird to fly?

A. lift. B. Gravity. C. Air pressure. D. Flight path.

Discuss how systematic and random errors influence the precision and accuracy of an experiment.

He has 54 cds and every box has 9 cds. how many boxes are in 54 cds?

Penicillin is a drug that kills bacteria. Today, many bacteria are resistant to this drug. How does natural selection best explain this observation? A. Penicillin causes some bacteria to mutate. B. Some bacteria survive penicillin and reproduce. C.

During any process involving a heat transfer, the entropy of a system must always increase, it can never decrease. True or False?

If a negative charge is initially at rest in an electric field, will it move toward a region of higher potential or lower potential? What about a positive charge? How does the potential energy of the charge change in each instance? Explain.

Elements in an blank or blank of the periodic table have similar characteristics

A pendulum is raised 1.5 cm and allowed to fall. if air resistance is negligible, how high will the pendulum rise on the other side?

In which of the following situations or place would you want to reduce the force of friction (multiple answers) A.) moving your mouse along the mousepad B.) the axle of your car wheels while you are driving C.) you are climbing a steep ladder D.

A star's parallax angle is 1.0. How far away is the star in light years?

What is calcite luster?