A train travels 57 kilometers in 3 hours, and then 87 kilometers in 2 hours. What is its average speed? km/hr

The metric system is based on units of A: twenty five B fives C: sixteen D: tens

A sound wave travels through water. What best describes the direction of the water particles? The water particles move perpendicular to the source of the sound wave.

Classify: This rock is made up of the mineral calcite and is formed from the remains of organisms that lived in water.

What are the colors of cosmic rays seen by different astronauts?

There are two pendulums with periods 1.5 s and 1 s, which one is longer, and which one is shorter.

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

Where do deep currents flow?

If a car drove 121km/hr on average how far did it travel in 116min?

A 10 kg farm wagon is sitting at the top of a hill that makes a 370 angle with the horizontal when the brake suddenly fails. The cart rolls down the hill for 50 m and then hits a haystack. It plows 2.0 m into the stack before coming to rest.

What is a Geographic test