Which is an element A. titanium and carbon in an alloy B. oxygen and nitrogen joined together C. a water molecule D. a piece of pure nickel

ps its science

What is occurring when two waves traveling along the same medium meet and cancel each other out? a.) destructive interference b.) constructive interference c.) reflection d.) refraction

A force of 334 N has a work on an object of 823 J, what is the displacement that was made in that work?

How does an insulator stop the flow of an electric current? A. Insulators have too many electrons. B. Insulators have a positive charge so they absorb electrons. C. Electrons in an insulator do not move readily. D.

A girl on a backyard trampoline bounces straight upward with an initial velocity with 4.5 m/s what is the girls velocity when she returns to the trampoline

In a total-immersion measurement of a woman's density, she is found to have a mass of 63 kg in air and an apparent mass of 0.0975 kg when completely submerged with lungs almost totally empty. A. What mass, in kg, of water does she displace? B.

What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? A. 0.25 N B. 49 N C. 196 N D. 748 N

When two or more pure substances are blended together the result is a?

10 PTS. A resistor has a value of 2.2 x 10⁵ Ω ± 20%. What is the range of possible values for this resistor?

Describe 3 uses of radioactivity isotopes

Two friends, barbara and neil, are out rollerblading. with respect to the ground, barbara is skating due south at a speed of 5.9 m/s. neil is in front of her. with respect to the ground, neil is skating due west at a speed of 1.4 m/s.