Trong nghiên cứu bản chất hạt của sóng điện từ người ta đã sử dụng ánh sáng có bước sóng tương ứng với  = 0,6 m. Hãy xác định: năng lượng

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.