Which of the following lenses has at least one plane surface

True or False: A 24 year old motorcycle driver would not be required to wear protective eyewear when riding in Florida. a. True b. False

F 600 J of work is done in 3 s, what is the power? (Power: P = W/t) 0.005 W 200 W 603 W 1800 W

An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 491 Hz when the train is approaching him and 472 Hz when the train is receding from him.

The acceleration of a particle moving only on a horizontal xy plane is given by, where is in meters per second squared and t is in seconds. At t 0, the position vector locates the particle, which then has the velocity vector. At t 4.

True or false; Materials that are poor conductors are poor insulators

One of the heating systems we talked about in this course comprises of a system of ducts. What is the process by which heat is transferred in this system? a. Conduction b. Convection c. Radiation d. None of the above

If the north pole of a magnet in a compass is attracted to Earth's geographic north, what must be the polarity of Earth's magnetic north pole? A. north B. south C. It can't be determined from the information given.

A canoe started its trip at 8 am. If the cannoe travelled at a speed of 70 mph how far did it travel by 1:36 pm?

1. Tariff of 1828 John C. Fremont 2. abolitionist who led the raid on Harper's Ferry John Brown 3. published The Liberator Santa Anna 4. Underground Railroad Harriet Tubman 5. died at the Alamo William Lloyd Garrison 6.

Which interaction of nature is weakest? a. strong c. electromagnetic b. weak d. gravitational