Based on the wall of conservation of energy how can we reasonably improve a machines ability to do work?

When you hit a nail into a board using a hammer the head of the nail gets warm. In terms of kinetic and thermal energy describe why you think this happens?

During your summer internship for an aerospace company, you are asked to design a small research rocket. the rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 940 m above the earth's surface.

What are gravitons?

Kevin draws a figure that has 4 sides all sides have the same length his figure has no right angels what figure does he draw

If the same force is applied to an object whose mass is tripled then the new acceleration would be

A paragraph that can serve the specific purpose of creating a special effect within the essay is called? a. paragraph block b. functional paragraph c. unified passage d. topical paragraph

What are the steps that produce electricity from this fuel

Adrian read about a new antimicrobial in a popular magazine. The advertisement claimed that the product Bactokil prevents bacterial growth. So, Adrian conducted a controlled experiment to test the product claims.

A world-class sprinter can burst out of the blocks to essentially top speed (of about 11.5 m/s) in the first 15.0 m of the race. what is the average acceleration of this sprinter, and how long does it take her to reach that speed?

How are primary and secondary succession similar and how are they different?