A 20 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2. What is the weight of the dropped object?

Which describes nuclear fusion? The nuclei of two atoms combine to form a larger nucleus. The nucleus of one atom splits to form two smaller nuclei. The electrons of two atoms combine to form a cluster of electrons.

Carbon cycles through the biosphere in all of the following processes except

A parallel-plate capacitor, with air between the plates, is connected across a voltage source. This source establishes a potential difference between the plates by placing charge of magnitude 4.33 * 10 - 6 C on each plate.

The tides are ... a renewable energy source a constant energy source an unreliable energy source which is the right statement

A car traveling 95km/h is 110m behind a truck traveling 75km/h. How long will it take the car to reach the truck?

A science class did an investigation to see how many breaths it took for each student to blow up a balloon. Jason blew up his balloon with the fewest breaths. Which of these might explain why Jason took fewer breaths to blow up his balloon? A.

How the behavior of waves is affected by a medium

Suppose the gravitational force between two spheres is 100 N. If the distance between the spheres is halved, what is the new gravitational force between them?

Why did the work of Rutherford and Marsden convince many scientists that the 'plum pudding' model of the atom was incorrect?

Current always returns to the: a) positive battery terminal b) negative battery terminal