A2.0-kg particle has an initial velocity of 5i^−4j^5i^−4j^m/s. sometime later, its velocity is (7i^ 3j^)(7i^ 3j^) m/s. how much work was done by the resultant force during this time interval, assuming no energy is lost in the process

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.