in a school playground there are 4 rows of 44 seats each. using the place value blocks find the total number of seats in the playground.

In a school playground, there are 4 rows of 44 seats each. Using the place-value blocks, find the total number of seats in the playground. => 48 or 1..

Introduction - We use specific number of digits to denote an exact value of a number for required accuracy. The digits used for such a purpose are called significant figures. Suppose a measurement is recorded as 0.6204 cm. It means that the measurem..

Sarah wants to make 5 necklaces with 34 beads in each necklace. She used the place-value blocks shown to find the total number of beads she would need. Identify the number sentence that corresponds to the figure shown. => 5 + 34 ..

. If the full-scale deflection of the galvanometer occurs for current I o and the ammeter is to have a range I m a x , we have The potentiometer is a device to compare potentials. Since the method involves a condition of no current flow, the device can be used to compare emfs of two sourc..

. A g -ray photon has no rest mass and no charge. According to radioactive decay law, Where l is disintegration constant. Half life of a radioactive element is the time during which half the total number of atoms in the element (N 0 ) disintegrate, i.e., in Average life or mean ..

>d- Block elements are the elements of group 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 placed in the middle of the table. They are also known as transition elements. The inner transition or f-Block elements - lanthanides and actinides, are placed in two se..

. I am told that all the residents in that road are Mathurs and that four of them are lawyers. I finally ask for Munna's father, and I am shown the house. It is morning soon. Peacocks walk fearlessly in the middle of the road. And at night, the town is full of little Holi fires. And singi..

In the electrolysis of aqueous copper sulphate between copper electrodes the anode is made up of a thick block of impure copper, and the cathode is made up of a thin sheet of pure copper (Fig.4.11). The reactions that take place ar..

The Biot-Savart law asserts that the magnetic field dB due to an element dl carrying a steady current i at a point P at a distance r from the current element is: The constant m 0 has the exact value m 0 = 4 p x 10 - 7 T m A - 1 It is the permeability of free spa..

Results and observations of scientific experiments should be properly recorded under headed columns and numbered rows. The headings must include the units in which each quantity is measured. Graphs are very helpful in comparing measurements. The general rule in plotting the gr..