Hajarah
This page lists questions and answers that were posted by visitors named Hajarah.
Questions
The following questions were asked by visitors named Hajarah.
Answers
The following answers were posted by visitors named Hajarah.
Let X = N, the set of natural numbers, Y = O, the set of all odd integers, and Z = E, the set of all even integers. Find (a) XUY (b)XnZ (c) X\ (YUZ) (d)Y \x (e) ZIY (Xn(YUZ).
2 years ago
|A|+|B| in sets
2 years ago
|A|-|B| in sets
2 years ago
If A = {1,2,3,5,7, 11, 13, 17,19} and B = {1,4,7, 10, 13, 16, 19} are subsets of N, verify that:|AUB| = |A|+ |B|- |AnB|.
2 years ago
An electron is shot with speed 5.0 x 10° m's out from the origin of coordinates. Its initial velocity makes an angle of 20° to the +x-axis. Describe its motion if a magnetic field B = 2.0 mT exists in the +x-direction.
2 years ago
Anion (g = +2) enters a magnetic field of 1.2 Wb/m* at a velocity of 2.5 x 10 m/s perpendicular to the field. Determine the force on the ion.
2 years ago
A rectangular coil of 25 loops is suspended in a field of 0.20 Wb/m?. The plane of the coil is parallel to the direction of the field. The dimensions of the coil are 15 cm verendicular to the field lines and 12 cm paralle. to them. What is the current in...
2 years ago
A rectangular coil of 25 loops is suspended in a field of 0.20 Wb/m?. The plane of the coil is parallel to the direction of the field. The dimensions of the coil are 15 cm verendicular to the field lines and 12 cm paralle. to them. What is the current in...
2 years ago
A closely wound, flat, circular coil of 25 turns of wire has a diameter of 10 em and carries a current of 4.0 A Determine the value of B at its center.
2 years ago
What is the Malority of a 98% w/w H,SO, solution if the specific gravity of the solution is 1.84?
2 years ago
A plane is traveling eastward at an airspeed of 500&m/h. But a 90km/ wind is blowing southward. What is the direction of the plane relative to the ground?
2 years ago