How is an electromagnet formed?

An aircraft operating at 40,000 feet msl in the standard atmosphere encounters what amount of the atmospheric density as at sea level?

Explain the plate tectonic theory.

Lesson Check 1. Use comparative relational thinking to choose which equation is true. a. 56 + 42 = 63 + 49 b. 87 + 55 = 91 + 51 c. 61 - 37 = 57 - 41 d. 77 - 39 = 85 - 31 V

A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground and experience negligible air resistance.

A digital thermometer reads 15 degrees Celsius, what is the uncertainty?

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale

A protostar forms once the nebular cloud condenses and the core begins

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are

How much force would be needed to move a car with the mass of 100kg to an acceleration of 5m/s/s?