True or false The sound of a police siren would be an example of the Doppler effect

A bicycle moves from rest to 5 m/s in 5 sec. what is the acceleration of the bicycle

A 24-gauge copper wire has a diameter of 0.51 mm and is used to connect a speaker to an amplifier. The speaker is located 7 m away from the amplifier.

Sal is thinking about making a positive change in his life. But there are risks involved. Which is the healthiest way that Sal can approach these risks?

Why might a police department use a social media account? To catch up on local gossip in case it relates to a case, to network for promotion and job opportunity, to alert citizen to important information such as road closure, to use the page as a

A 2130-kg space station orbits earth at an altitude of 549000 m. find the magnitude of the force with which the space station attracts earth. the mass and mean radius of earth are 5.98 * 1024 kg and 6370000 m, respectively.

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

The act, process or state of the change in place or position oa a body with respect to time and relative to the observer is said to be : - 1. Rest 2. Stationary 3. Motion 4. None of the above