Why electric field is normal to equipotential surface? this is because there is no potential gradient along any direction parallel to the surface , and so no electric field parallel to the surface. This means that the electric lines of force are always at right angle to the equipotential surface. How electric field is perpendicular […]
Why gravity is not force?
Why gravity is not force? This equivalence between floating and falling is what Einstein used to develop his theory. In general relativity, gravity is not a force between masses. Instead gravity is an effect of the warping of space and time in the presence of mass. Without a force acting upon it, an object will […]
How many volts are in a Watt?
Can solid dissolve in gas?
Can solid dissolve in gas? That gases can dissolve solids has been known since the work of Hannay in 1879-1881. The historical and theoretical aspects of this phenomenon are discussed, and the literature of the subject is summarized and reviewed. Is smoke a gas solid solution? Hint: Smoke is a colloid. A colloid has a […]
What is the probability of getting at least 3 heads?
Where is the force of attraction the strongest on a magnet?
How long does a water pressure regulator last?
What happens to starch when toasted?
What happens to starch when toasted? During the heating process, the starches within the food are broken down (by a chemical reaction) into sugars called dextrin. What happens if the food is cooked for too long? If toast is overcooked it goes black and burnt. Overcooking causes the starch to turn to carbon. Does toasting […]
What is the missing cumulative relative frequency?
What is the missing cumulative relative frequency? To find the relative frequency, divide the frequency by the total number of data values. To find the cumulative relative frequency, add all of the previous relative frequencies to the relative frequency for the current row. How do you find the missing cumulative frequency? The cumulative frequency is […]
What happens to the blood in the right ventricle?
What happens to the blood in the right ventricle? Blood first enters the heart’s right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs. What would […]