An automobile passes by a point to 120 km / h overcoming the allowed speed, at 4s a police goes out to pursue it constant accelerated, if it reaches 6000m determine: a) - how long the persecution lasts; b) -what did the police do?

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?