A U-shaped valley is most often formed by

A. volcanoes

B. oceans waves

C. plate movement

D. glacial movement

Evidence that a gas consists mostly of empty space is the fact that: (A) the density of a gas becomes much greater when it is liquefied (B) gases exert pressure on the walls of their containers (C) gases are transparent (D) heating a gas increases

What is the speed. ofma runner who runs for 6 min. and covers a distance of 1 mile?

A rocket ship leaves the Earth's atmosphere. Its initial velocity is less than its final velocity. Which is this an example of

When an object is traveling for a period of time and is neither speeding up or slowing down, the object is said to have?

A 1.55-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 13.3-n horizontal force. find the magnitude of the tension in the rope, and the rope/'s angle from the vertical.

Explain how inertia and the shape of a loop counteract the force of gravity to keep riders from falling out when a roller coaster goes through a loop traveling upside down

Which is not a characteristic of an ideal fluid? A. high viscosity B. laminar flow C. constant density D. constant pressure

What type of weather system brings calm, clear weather?

What is one reason supporting genetic modifications to food

Match the description of how heat is transferred to the proper term. A. When two things in contact with each other transfer heat Convection B. When a liquid or gas carries heat Conduction C. When waves transfer heat Radiation