Whats a observation?

A yo-yo is swung around the head of a person in a horizontal circle. What provides the centripetal force on the yo-yo?

Which of the following is most likely to be attracted to a magnet? A. A school textbook B. A piece of glass C. An electromagnet D. A copper wire

A nuclear particle with no charge

Why do atoms tend to combine with other atoms instead of existing as single atoms?

A canoe is floating down a river with a velocity of 35 meters per minute when it suddenly approaches a waterfall. if the waterfall drop 30 meters, how far put will the canoe land?

Density is a property of matter that relates

A main sequence star cools and expands. It must be entering which stage? A. white dwarf B. black dwarf C. red giant D. neutron star ... ?

Question 1: A man trailing a trolley bag and suddenly, the wheels of the trolley bag get locked. The man realises that he has to put extra effort to drag the bag. The man finds it difficult to drag the bag because

A body is thrown up with a velocity of u ... it reaches maximum height of h ... if its velocity is doubled the maximum height it reaches is?

A heating pad has several strips of heater wire connected in parallel. Consider eight of the wires, each with 4Ω resistances, connected to a 12V power source. given this scenario answer the following questions A.