كرة كتلتها و 200 مربوطة بنهاية خيط طوله m 1 تتحرك حركة دائرية منتظمة في مسار دائري افقي ، اذا كانت الكرة تدور دورتين في الثانية ، فإن مقدار قوة الشد في الخيط بوحدة النيوتن تقريبا
تساوي :

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

Which composition of water moves to begin a deepwater current?

Frequency of electromagnetic waves that a radio station is assigned is called