What is it called when I add two forces together? The resultant force is a single force that has the same effect as two or more forces acting together. You can easily calculate the resultant force of two forces that act in a straight line. At what angle should the two forces 2p and? Therefore, […]
How do you magnetize metal permanently?
How do you magnetize metal permanently? Take two magnets put one North pole and one South pole on the middle of the iron. Draw them towards its ends, repeating the process several times. Take a steel bar, hold it vertically, and strike the end several times with a hammer, and it will become a permanent […]
What are the three main types of body membranes?
What are the three main types of body membranes? There are three types of epithelial membranes: mucous, which contain glands; serous, which secrete fluid; and cutaneous which makes up the skin. What are the three functions of body membranes? Biological membranes have three primary functions: (1) they keep toxic substances out of the cell; (2) […]
Where should you connect a voltmeter?
Where should you connect a voltmeter? A voltmeter is placed in parallel with the voltage source to receive full voltage and must have a large resistance to limit its effect on the circuit. An ammeter is placed in series to get the full current flowing through a branch and must have a small resistance to […]
What is chain reaction with example?
What is chain reaction with example? In chain reaction. Nuclear chain reactions are series of nuclear fissions (splitting of atomic nuclei), each initiated by a neutron produced in a preceding fission. For example, 21/2 neutrons on the average are released by the fission of each uranium-235 nucleus that absorbs a low-energy neutron. What is another […]
Where is kinetic energy the greatest on a hill?
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed?
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed? The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a […]
Where is the magnetic field strongest?
Where is the magnetic field strongest? center Why does electricity produce magnetic fields? Inside a magnet, the atoms at one end contain electrons that all spin in one direction – meanwhile the atoms at the other end contain electrons that all spin in the opposite direction. Rather than spinning in a balanced way, the electrons […]
What is the most powerful force in the world?
What is the most powerful force in the world? Armed Forces The United States in comparison, has significantly less – 1.4 million – but when assessing the overall power of the world’s military forces, the U.S. comes out on top, ahead of Russia and China in second and third, respectively. Which country has no army? […]
How fast is the volume of a sphere increases as the radius increases?
How fast is the volume of a sphere increases as the radius increases? Since time just increases, and the radius increases as a function of time, and the volume increases as a function of a constant times the radius cubed, the volume increases faster than the radius increases, so we can’t just say the two […]