1.7 million people are killed
<h3><u>Answer;</u></h3>
= 75 %
<h3><u>Explanation</u>;</h3>
To measure efficiency of a machine, compare the work output to work input.
Efficiency = Work output/ work output × 100 %
= 300/400 × 100
= 75 %
Scientific inquiry may be defined as the process that follows the step of a question hypothesis, investigation, gathering evidence and communicating the results. it is commonly based on empirical or measurable evidence subject to specific principles of reasoning. it involves investing a given subject in a logical way to find evidence that supports the answer.
Answer:small barrel gun
Explanation:
Given
Muzzle velocity of bullet is greater in short barrel gun as compared to larger barrel gun
acceleration is given by change in velocity with respect to time
In case of short barrel bullet time taken by bullet to reach its muzzle velocity is less therefore acceleration of small barrel bullet is more compared to long barrel bullet.
Answer:
The distance between two objects
Explanation:
Depending on how far away or how close two objects are will affect the gravity.