At 3 weeks, you can begin to offer toys to a newborn Yorkie puppies. At this time milk teeth can begin to erupt and puppies may enjoy having something to gnaw at. The 1st deworming may be done. Make sure that your dog's veterinarian approves. This will depend on the weight of the puppy and the pup's health.
One megahertz (abbreviated: MHz) is equal to 1,000 kilohertz, or 1,000,000 hertz. It can also be described as one million cycles per second. Megahertz is used to measure wave frequencies, as well as the speed of microprocessors. Radio waves, which are used for both radio and TV broadcasts, are typically measured in megahertz.
400000 Hertz (Hz) Kilohertz : The kilohertz is a decimal multiple unit of the SI derived unit of frequency hertz which is equal to 103 Hz. The symbol for gigahertz is kHz. Hertz : The hertz is the unit of frequency in SI units equivalent to cycles per second. It is defined as the number of cycles per second of a periodic phenomenon. It is most commonly used to describe of the sine wave, particularly those used in radio and audio applications , such as the frequency of musical tones.