Quantitative Versus Qualitative
Most experiments in physics require the observations made to be quantitative rather than qualitative. If observations are only descriptive or qualitative, they are likely to be imprecise and could cause disagreements between experimenters. For example, scientists cannot merely say that an object i..
Divide 441 into two parts such that nine times the greater part will ..
Divide 441 into two parts such that nine times the greater part will be equal to 12 times the smaller one. => 184, 257 or 194, 247 or 189, 252 or 186, 255..
The stem and leaf diagram indicates the ages of the employees in an or..
The stem and leaf diagram indicates the ages of the employees in an organization. How many times do you find the data value 22 in the diagram? => 3 or 1 or 2 or 0..
Parts of a Flower
Calyx - The Calyx forms the outermost whorl in the flower. Its component parts are the sepals. The sepals are generally green in colour. Sepals give protection to the inner parts of the flower when the flower is in bud condition. In some plants like Fuchsia and some Salvia speci..
Calyx - The Calyx forms the outermost whorl in the flower. Its component parts are the sepals. The sepals are generally green in colour. Sepals give protection to the inner parts of the flower when the flower is in bud condition. In some plants like Fuchsia and some Salvia speci..Simple Pendulum Time Period of Oscillation Varies with Time
. But the above table does not tell us whether the length and time period are directly proportional or not. By plotting a graph between L and T we can come to know whether L and T are directly proportional or not. We plot a graph by taking L along x axis and T along y axis, Graph between ..
. But the above table does not tell us whether the length and time period are directly proportional or not. By plotting a graph between L and T we can come to know whether L and T are directly proportional or not. We plot a graph by taking L along x axis and T along y axis, Graph between ..Use and Disuse of Parts
According to Lamarck, continuous use of a part results in it being well-developed and disuse of a part over a long period of time will result in its degeneration. For example, giraffes were forced to extend their necks and stretch their legs to reach higher vegetation..
Main Parts of the AC Generator
>As the armature rotates about an axis perpendicular to the magnetic field, it keeps on changing its relative orientation with respect to the field Thus the flux keeps on changing continuously with time This change in magnetic flux induces an emf If the outer terminals of the armature are conn..
>As the armature rotates about an axis perpendicular to the magnetic field, it keeps on changing its relative orientation with respect to the field Thus the flux keeps on changing continuously with time This change in magnetic flux induces an emf If the outer terminals of the armature are conn..Smith works part time and earns $3.25 an hour. If he wants to earn at ..
Smith works part time and earns $3.25 an hour. If he wants to earn at least $125, how many full hours must he work? => 36 or 39 or 38 or 34..
A shopping mall opens at 9:00 a.m and closes at 9:00 pm. The employees..
A shopping mall opens at 9:00 a.m and closes at 9:00 pm. The employees take a break for an hour during lunch time. How many hours do they work in a day? => 12 hours or 9 hours or 11 hours or 10 hours..
Sunny invests $9,570. He invests a part of money at 7%, which is 2 tim..
Sunny invests $9,570. He invests a part of money at 7%, which is 2 times as much as the part he invests at 12% interest. At the end of the year, he receives an interest of $829.40. How much did he invest at 12%, and how much at 7%? => $4019.40, $5550.60 or $4019.40, $7..
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