السؤال الرابع: حل المسألة الأتية: ۷ ما حجم الزئبق المنسكب من إناء حجمه cm
200 إذا ارتفعت درجة حرارة الاناء بمقدار 30
°
C مع العلم
بأن معامل التمدد الطولي للزجاج و معامل التمدد الحقيقي للزئبق على الترتيب هما :
(x 10-5
)
(
°
C
18.8) للزئبق
11106
/
0c = ) الزجاج
g

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Which insurance would contradict the big bang theory