Most of the elements (85%) in the periodic table are.

When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this?

Why does the speed of sound vary depending on the medium through which it travels. in general?

A firefighting crew uses a water cannon that shoots water at 25.0 m/s at a fixed angle of 53 degrees above the horizontal. The firefighters want to direct the water at a blaze that is 10.0 m above ground level.

A NATO base in northern Norway is warmed with a heat pump that uses 7.0 °C ocean water as the cold reservoir. Heat extracted from the ocean water warms fluid to 80°C; this warmed fluid is used to heat the building.

Which statement is true about a liquid but not a gas? A) It has more internal energy than the solid state. B) It will change shape and take the shape of its container. C) It allows particle to move past each other relatively easily.

Teens realize that things may be "shades of gray" after they enter Piaget's social stage. identity crisis stage. menarche stage. formal operational stage.

Technician A says that fractured rods have a unique mating surface and that only the cap that was fractured is the one that will fit that rod. Technician B says that a powdered metal rod is less expensive, lighter, and as strong as a forged rod.

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?

There are 5,280 feet in 1 mile and 12 inches in one foot. How many inches are in a mile?

An anion is an atom that has lost electrons. True or False?