A train travels 85 kilometers in 5 hours, and then 63 kilometers in 5 hours what is its average speed?

A ball is thrown with an initial speed of 10. meters per second. At what angle above the horizontal should the ball be thrown to reach the greatest height? (1) 0° (3) 45° (2) 30.° (4) 90.°

At what temperature does gasoline freeze

Why do we use a spaceship in outer space, far from other objects, to illustrate the principle that an object that does not interact with anything travels at constant speed in a straight line (Newton's first law) ? Why not a car or a train?

Which of the following would be appropriate at the Power Level (Phase 5) of the OPT model or before athletic competition? a. Corrective flexibilityb. Active flexibilityc. Functional flexibilityd. Relative flexibility

What is the critical angle for vegetable oil and water and plexiglass

Which of the following statements about Em waves is true? A. Em waves all have the same speed B. Em waves all have the same wavelength C. Em waves only travel through water D. Em waves all have the same amount of energy

A teacher has asked four students to state a scientific theory. Which student is correct?

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?

How does uniform linear motion differ from uniform circular motion?