Aspring with a pointer attached is hanging next to a scale marked in millimeters. three different packages are hung from the spring, in turn, as shown in the figure. (a) which mark on the scale will the pointer indicate when no package is hung from the spring? (b) what is the weight w of the third package?

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

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?

The receptor cells that convert light energy into neural signals are called