Answer the folloeing questions
1.Name the force used by beast of burden.
2.Which of the following friction keeps an object moving.
3.Name the instrument used to measure friction.
4.Which of the following is the cause of friction.
5.Friction caused by fluids is called______
6.which of the following instrument produces sound by vibrating the air column?
7.A sound of specified pitch is called_____.
8.Academic study of musical instrument is called______.
9.Which of the following is the SI unit of sound
10.Which of the following non metal is not present in nitric acid?
Answers
Answer:
1?,2-
Explanation:
Answer:
1. A draught animal such as donkey, mule, llama, camel, horse or ox carries or pulls a load for the benefit of a human....
2. Static friction keeps gravity from pulling the cheese down the incline. Figure 1. ... Another example of static friction comes when objects are moving. When you are ... These factors of friction are reflected in its generalized equation
3.In the 1700s, the term “tribometre” was coined by Goldsmith to refer to a device to measure friction, but in current usage, the scope of the term tribometer has been broadened to mean an instrument used to measure friction, wear, or both.
4. Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other
5. drag.
6. Plate type musical instruments
Instrument Name Parts which Produces Sound
Sitar Stretched string
Flute Air Column
Shehnai Air Column
Drums Stretched Membrane
7. a hoarse sound.
8. organology.
9. Harz
10. The non metal is nitrogen and hydrogen also. The Brainliest Answer! It seems that u forgot to give options in ur question.. Non-metals which are present in nitric acid(HNO3) is Nitrogen and oxygen.
Explanation: