Câu 4: Phương trình chuyển động của một chất điểm trong hệ tọa độ Oxy là x =2t (cm); y = 3t2 (cm). Khoảng cách từ chất điểm đến gốc tọa độ tại thời điểm t = 2s là

Aregular polygon has angkes of size 150° each.how many side has the polygon

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference