What is the principal of operation of astronomical telescopes?

If a Ferrari with an initial velocity of 10 m/s accelerates at a rate of 50 m/s squared for three seconds what will its final velocity be?

How does energy travel in a mechanical wave? in a medium in space in time in a vacuum

If you had only one match, and entered a dark room containing an oil lamp, some newspaper, and some kindling wood, which would you light first?

when moving a couch you exert a force of 400 N and push it 4.0 how much wokr have you done on the couch

Dr. Bingham told his patient that she needed to think more positively about her life in order to be happy. Dr. Bingham seems to be working in what perspective? A. Social cognitive B. Humanistic and positive C. Behavioral D. Biopsychology

A fountain of water and steam that erupts from the ground

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?

Does adding a neutron to an atom's nucleus makes it an ion?

What is the difference between a fault-block and upwarped mountains?

Which of the following is not one of the reasons to properly warm up before exercising? A. Develop overall flexibility. B. Increase blood flow to the muscles and raise body temperature. C. Prevent injuries such as strains sprains and muscle cramps.