Is a dimond a pure substance? yes or no

Which of the following is not a way in which humans directly impact algal bloom production? a. industrial pollution b. wastewater discharge c. fertilizer in aquatic ecosystems d. fishing

Which is true for a substance that absorbs energy? The energy increases the molecular motion and the kinetic energy of the substance. The energy decreases the molecular motion but increases the kinetic energy of the substance.

How does the media influence our view of beauty and gender roles?

A 3 kg toy car with a speed of 7 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 5 m/s. If the cars are locked together after the collision with a speed of 2.20 m/s, how much kinetic energy is lost?

Which of the following is Not likely to put someone at risk for becoming involved in a unsafe online relationship? A. Feeling lonely or misunderstood B. being truthful and honest with his or her parents C. feeling overwhelmed by personal problems D.

What are the equations for acceleration and net force?

Which is a diatomic molecule? A. Ar B. CO C. CO2 D. NaCl

A sample of N-type silicon is at the room temperature. When an electric field with a strength of 1000V / cm is applied to the sample, the hole velocity is measured and found to be 2 * 105 cm/sec. a.

Which of the following is a vector quantity? A. 83 ounces of liquid B. 55 km/hr in a truck C. 15 seconds of travel D. 10 m/s down

Which of the following best describes the ultraviolet catastrophe of blackbody radiation? A. As energy is added to an object acting as a blackbody radiator, its emissions move to the ultraviolet part of the electromagnetic spectrum. B.