15. यदि दिइएको केन्द्र 0 भएको वृत्तको अर्धव्यास 5 cm र OD = 4 cm भए मध्यबिन्दु
D भएको AB एउटा जीवा को लम्वाई कति होला?
15. if radius of this circle is 5 cm and D is mid points of
AB where OD =4 cm. find the lengthof chord AB is
0
B
A
O 3cm
O 4cm
O 5cm
O 6cm
0
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Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Research the neutrino using the internet and report your findings. in a nuclear decay, the nucleus of an atom splits apart. larger particles can be detected and their masses and velocities can be recorded. explain how the existence and properties of the neutrino could be predicted using the conservation laws.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage