A source travelling to the right at a speed of 5 m/s emits a sound wave which is reflected off a reflector travelling to the left at a speed of 5 m/s.If the frequency of the reflected sound wave detected by a listener back at the source is 100 Hz,what is the frequency of the wave emitted at the source? 
Definitions:
Income Component
The part of an investment's return that comes from dividends or interest payments, as opposed to capital gains.
Broker-dealers
Firms that trade securities for customers and their own accounts, providing investment services.
Clients' Interests
A principle in financial and legal services that emphasizes prioritizing the needs and goals of clients above those of the professional or the firm.
Suitability
Suitability refers to the requirement that financial advisors and investment recommendations must align with the investing objectives, risk tolerance, and financial situation of the client.
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