Answer:
efficiency of a machine is less than 100% because some part is energy is utilized to overcome some opposing forces like friction which is wasted as heat ,sound energy etc
Explanation:
Greater or more acceleration
Answer:
Which microphone captures a singer's low sounds the loudest?
Explanation:
Scientific questions are the basis of any scientific experiment. An observation is followed by a scientific question. In this question, scientists are investigating how well different microphones capture and record sounds by using tools that show how loud the high and low sounds are and a tool that shows how much noise is recorded along with the actual sounds.
Hence, a scientific question should be that which will cover the whole aspect of the investigation i.e. the question should contain a general scope of the problem. Hence, a scientific question that could be included in this investigation is:
Which microphone captures a singer's low sounds the loudest?
This is because this question contains every part being investigated i.e. How different microphones capture sounds and records them (whether low or high).
The statement ‘The Biot-Savart
force law does not apply if the velocity is parallel to the field direction’ is
true. The answer is letter A. Any electron moving in a conductor will produce a
magnetic fiels around the flow. this is the fundamental of Biot – Savart law.
Scientific journals are a place for the scientists to share the results of their work. Without them, it could happen that all the scientists would work on the same problems, without knowing that someone else has already solved this problem. With the journals, they can instead focus on furthering our knowledge, and not repeating the basic experiments.
