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an object is thrown horizontally off a cliff with an initial velocity of 5.0 meters per second. the object strikes the ground 3.0
seconds later. what is the horizontal speed of the object 1.0 second after it is released? neglect friction.
1 5.0 m/s
2 10. m/s
3 15 m/s
4 30. m/s

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?