a 70 kg skydiver opens her parachute. The force due to air resistance is now 1200 N. what is the acceleration of the skydiver

Which level of organisms get the most energy out of the food they make or consume? A) producers B) decomposers C) First-level consumers D) Higher-level consumers

Is the series equivalent resistor larger than either resistor, or is it smaller?

The Atomic Mass of an element is A) The sum of the number of protons and electrons in one atom of the element B) Twice the number of protons in one atom of the element C) A ratio based on the mass of a carbon-12 atom D) A weighted average of the

How long does a dream typically last near the end of the sleep cycle, just before waking? A. about 5 minutes B. about 15 minutes C. about 30 minutes D. about 50 minutes

The density for potassium is 0.856 g/cm3. What would be the mass of a 40 cm3 piece of potassium? A. 68.48g B. 46.73g C. 34.24g D. 34g

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is pulled A. gravity pulls very hard on the milk carton. B. the milk carton has very little weight. C. the milk carton has inertia. D.

What is concave mirror

Two boxes are suspended from a rope over a pulley. each box has weight 50 n. what is the tension in the rope

What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is the outcome? What happens after an hour in vinegar?

Psuedopod in a sentence