If a 100Ib women walks up a flight of stairs to get to the top of a 100 meter building. How much work did she perform?

A 16-kg scooter is moving at a speed of 7 m/s. The scooter's speed doubles. What is the scooter's kinetic energy when its speed doubles? a. 784 J b. 1568 J c. 392 J d. 112 J

The atomic mass of gold is 0.197 kg/mole. how many moles are in 0.566 kg of gold.

An object falling. What type of energy is being described

Pick the statement that is most likely to be true of an element with low electronegativity. A. The valence electrons of the element are not shielded. B. The element has an almost empty valence shell. C. The atomic size for the element is very large.

A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1180 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?

If you start a new school year by changing bad habits from last school year and your grades improve which approach would this be an example of? a) behaviorism b) cognitive c) social-cultural d) evolutionary

The study of how sound behaves in rooms and buildings

What colors of light are absorbed by hydrogen gas

What variables affect the acceleration of an object and in what matter do they affect the acceleration?

Max (15 kg) and Maya (12 kg) are ice-skating on a frozen pond. At one moment, when Max is skating away from the shore at 8.2 m/s and Maya is skating towards the shore at 4.6 m/s, they collide and bounce off each other without falling.