1 con lắc lò xo có khối lượng m, độ cứng K= 45N/m. Cho con lắc dao động điều hòa với biên độ A=20cm thì a cực đại =18m/s2. Xác định khối lượng m

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation