QUESTIONS CDC
दिइएको चित्र कुन प्रकारको ट्रान्सफर्मर हो? यसको कोर कन
पदार्थले लेमिनेसन गरिएको हुन्छ ? ट्रान्सफर्मरमा प्राइमरी
स्वाइलको सङ्ख्या र सेकन्डरी स्वाइलको सङ्ख्या कहिल्यै पनि
वरावर वनाइँदैन, किन? (Which type of transformer is given in
the figure? Which substance is used to laminate its core? The
number of turns of primary coil and the number of turns of
secondary coil in a transformer are never made equal, why?)
AC source
Output​

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.