How does music effect concentration?

A solid sphere of mass 8.6 kg, made of metal whose density is 3400 kg/m^3, hangs by a cord. When the sphere is immeresed in a liquid of unknown density, the tension in the cord is 38N. What is the density of the liquid?

What is climate change? How is it caused Define greenhouse effect. What did the 15° United National Conference on Climate Change held in Copenhagen on 7 to 18 December 2009 advocate? Write in short

What phase does the moon have to be in for a solar eclipse

The key to making a concise mathematical definition of escape velocity is to consider the energy. if an object is launched at its escape velocity, what is the total mechanical energy etotal of the object at a very large (i. e.

A force of 83 newtons is applied to a wire with a diameter of 0.5 mm. what is the tensile stress (in n/m2) in the wire? do not include units with the answer.

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.