Rowerzystka poruszająca się ruchem jednostajnym wzdłuż osi x może się oddalać od punktu zero lubzbliżać do niego. Zaznacz wszystkie poprawne dokończenia zdania. Wykres zależności położenia rowerzystki od czasu poprawnie przedstawiono na rysunku

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

The ability to make things happen is also called a. heat b. force c. matter d. energy