Defination of centre of curvature of a lens.

1. Describe what happens to the gravitational when you increase mass versus when you increase distance.

What is the dependent variable

A large truck and a small car have a head-on collision. Which scenario is true? A. The truck exerts a greater force on the car than the car exerts on the truck. B. The car exerts a greater force on the truck than the truck exerts on the car. C.

This element has 2 valence electrons and four energy levels

What is the correct name for this formula BaCI 2?

A teacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and pH indicator strips, which measure acidity.

What are geothermal heat pumps used for? a. Cooling and heating buildings b. Cooling buildings c. Heating buildings d. Heating water for using in homes

Electromagnetic waves have linear momentum as well as energy. What does this imply about electromagnetic waves?

A humanoid skeleton is found buried in the ashes of a volcano that erupted between 10,000 and 12,000 years ago. when scientists use absolute dating techniques to obtain an age of the fossil, approximately how much carbon-14 isotope will remain?

Two objects exert a gravitational force of 3 N on one another when they are 10 m apart. What would that force be if the distance between the two objects were reduced to 5 m? A. 1.5 N B. 6 N C. 12 N D. 24 N