A train is moving at a speed of 50 km/h. How many hours will it take the train to travel 600 kilometers?

How do you think momentum affects car crashes?

A particle is confined to the x-axis between x = 0 and x = 1 nm. The potential energy U = 0 inside this region and U is infinite outside. What is the longest possible de Broglie wavelength for the particle? A. infinite B. 1 nm C. 2 nm D. zero E. 0.

462 seats ticket prices were 40 adult and 21 kids total proceeds were 13179 how many kid tickets were purchased

Explain with the stars look like to Jane. Explain what the stars look like to John. Explain why the stars look different between Jean and John.

How long will it take this wave to travel 3000 m in the x-direction?

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.