If you toss a penny what is the chance it will be heads

These mystery elements are at the top of their families on the periodic table. An element that is in the same family as element C is likely to have which properties?

Why doesn't the moon fall toward the earth and smash into it?

Is Mars luminous?

An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary, the tension in the cable was 7500 N.

Heat energy always flows from a. larger objects to smaller objects. b. heavier objects to lighter objects. c. cooler objects to warmer objects. d. warmer objects to cooler objects.

A device that changes thermal energy into mechanical energy

You and your roommate are moving to a city 380 mimi away. Your roommate drives a rental truck at a constant 55 mi/hmi/h, and you drive your car at 65 mi/hmi/h. The two of you begin the trip at the same instant.

Which planet is 92,897,000 miles from the sun?

Stretching or drawing a solid into a wire is which of the following physical properties A) ductility B) solubility C) malleability D) conductivity

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?