Hai thành phố A, B cách nhau 40km. Cùng một lúc xe thứ nhất qua A với vận tốc 10km/h . Xe thứ 2 qua B với vận tốc 6 km/h. Viết phương trình mỗi xe trong hai trường hợp sau: a. Hai xe chuyển động theo chiều A tới B
b. Hai xe chuyển động ngược chiều nhau

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length

Which is an example of an exothermic process?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?