How much kinetic energy does 150kg boulder have if it is rolling down a hill with a speed of 5m/s? (KE = 1/2mv2) 375J 310J 1875J 1500J

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Which of the following are guidelines to follow for obtaining accurate observations