con lắc lò xo dao động điều hòa theo phương thẳng đứng, đầu trên cố định đầu dưới gắn vật m=1kg biết phương trình dao động x=20cos10t(cm), trục tọa độ thẳng đứng chiều dương hướng xuống, gốc tọa độ tại vị trí cân bằng. lực đàn hồi tại vị trí x=10cm

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

No bc a lot of things r still theories n unproven

The modern-day generator works on the principle of electromagnetic induction discovered by michael faraday in 1831-32. faraday discovered that the above flow of electric charges could be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field.