Disregarding air friction, what force(s) act on a bullet shot from a rifle as it moves through the air? a) gravity
b) spinning force from the rifle
c) force from the gunpowder
d) none of the above

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.