If there is a North and South Pole on a magnet why don't north and north meat or south and south

What is it called when you connect an object to earth with a conductor

A string, 68 cm long and fixed at both ends, vibrates with a standing wave that has 3 antinodes. the frequency is 180 hz. what is the wave speed?

Which would be an example of biopsychology? A. A psychiatrist prescribes medication for depression. B. A psychiatrist asks the patient how he deals with conflict. C. A psychiatrist has the patient do a journal about his experiences. D.

Describe what would happen if you rubbed a mineral with a Mohs hardness value of 7 against a mineral with a value of 5?

A box of cleaning supplies weighs 15 n. If the box is lifted a distance of. 60 m, how much work is done?

Which of the following contains both protons and neutrons? a. outer shell b. nucleus c. covalent bond d. ionic bond

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?