HIV can be spread from one person to another through sex, contact with infected blood, or from a mother to her baby.

A.

True

B.

False

Explain the relationship between gravity and pressure in a nebula

What is the mass of a stone moving at a speed of 15 meters/second and having a momentum of 7.5 kilogram·meters/second?

A pure substance that cannot be broken down into any other substances by chemical or physical means is a (n)

The energy of an electromagnetic wave depends on its

Two students suggest different functions for the battery plays a flashlight. Student A: "The battery supplies the charge which allows the light bulb to light. When the battery no longer works, it is because it has run out of charge.

An aircraft with the mass of 300000kg is flying at an altitude of 2000m with a speed of 100m/s what is the kinetic energy of the aircraft

What is the main idea behind the law of definite proportions?

A sign that weighs 400N is hanging from two cables that form angles of 24 degrees with the horizontal. What is the tension in each cable?

What temperature does nuclear fusion begin?

A 24-volt source is required to furnish 48 watts to a parallel circuit consisting of four resistors of equal value. What is the voltage drop across each resistor?