1. Khi nào ta biết được chất rắn nóng chảy hoàn toàn? 2. Nếu nhiệt độ nóng chảy là xác định thì chất rắn ta xét là chất rắn kết tinh hay vô định hình. Vì sao?

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?