PHYSICS HIGH SCHOOL

Which of the following is closest to the speed of sound in air at sea level ?a. 3 m/s
b. 30 m/s
c. 330 m/s
d. 3300 m/s

Answers

Answer 1
Answer: Closest to speed of sound in air at sea level : C. 330 m/s I think.

Related Questions

An object is thrown horizontally from the open window of a building. If the initial speed of the object is 20 m/s and it hits the ground 2.0 s later, from what height was it thrown? (Neglect air resistance and assume the ground is level.)
What is difference between atoms and molecules?
All of the following are examples of ways to improve energy efficiency of heating systems, except _______.A. Closing off rooms that aren’t in use. B. Frequently cleaning the furnace filter. C. Fixing cracks in the walls and floor. D. Opening the front door in winter to filter and clean warm air.
Explain why a clothes iron with a metal base must be connected to the mains by a three-core cable.
An ideal gas is enclosed in a piston-cylinder apparatus with the piston being freely movable. Given that LaTeX: \DeltaΔE is positive and LaTeX: \DeltaΔH is negative following a process, ____ the system absorbs heat and expands during the process. the system absorbs heat and contracts during the process. the system loses heat and expands during the process. the system loses heat and contracts during the process. the system loses heat but neither expands nor contracts during the process.

What is the design process (Engineering Design Process) 5 sentences

Answers

The design process is a approach taken to tackle projects into manageable sections.

A doctor diagnoses a man with an acute strain. Which job is most likely to cause an acute strain?furniture mover
bank teller
baseball player
heart surgeon

Answers

Answer:

Furniture mover.

Explanation:

A strain is a soft tissue injury that happens on the muscle or tendon - it could occur on several parts of the body, such as hands or legs. When it is acute, an incident might have caused it and proper rest would let it heal.

This type of injury could happen to athletes, but those who are at risk are those who are involved in sports field such as wrestling and football. Thus, baseball players are a lower risk.

Bank tellers and heart surgeons would not suffer from this type of injury - they are more likely to suffer from chronic than acute strains do to the overuse of certain muscles.

The group that is at the highest risk are people who move heavy objects - such as furniture mover.

Answer:

Its A.

Explanation:This type of injury could happen to athletes, but those who are at risk are those who are involved in sports field such as wrestling and football. Thus, baseball players are a lower risk.Bank tellers and heart surgeons would not suffer from this type of injury - they are more likely to suffer from chronic than acute strains do to the overuse of certain muscles.

An integrated circuit is a _____.

Answers

an integrated circuit is a set of electronic circuits on one small flat piece of silicon

i hope this help. good luck

closed and unsecure circuit

What nondestructive testing method requires little or no part preparation, is used to detect surface or near surface defects in most metals, and may also be used to separate metals or alloys and their heat-treat conditions?

Answers

Answer:Eddy current inspection.

Explanation:EDDY CURRENTS are currents which are produced as a result of changes observed within the magnetic field of an electric circuits. Eddy currents are also called Foucault's Currents. Eddy currents can heat up objects without actually coming in contact with that object.

Eddy current testing or inspection ( ECT) is an electromagnetic testing/inspection methods applied in nondestructive testing (NDT).

Nondestructive testing utilises

Electromagnetic induction to detect and describe surface and sub-surface issuess in conductive materials according to the features of the issues or problems in the conductive material.

Answer:Eddy current testing method.

Explanation:

Non destructive testing methods are techniques which makes use of electromagnetic radiation to examine and detect anomalies in a wide variety of articles( metallic or non - metallic) without causing any changes to it. Non destructive testing is used in science and technology fields such as:

- petroleum engineering,

-mechanical engineering,

- forensic engineering,

- aeronautical engineering and

- medicine.

Types of non destructive testing includes

Eddy current testing, magnetic- particle testing, liquid penetrant testing, radiographic testing, ultrasonic testing, and visual testing.

Eddy current testing method is used to detect surface or near surface defects in most metals, and may also be used to separate metals or alloys and their heat-treat conditions.

Density is given in ____.
a. Pa/cm3
c. g/s2
b. N/m2
d. g/cm3

Answers

Density is defined as  [mass] / [volume] .

The only choice listed with those physical dimensions is 'd' .

When light bends as it enters a different medium the process is known as what?

Answers

refraction. this is also known by the rainbow effect or the broken light effect. 
Other Questions
a small dog is trained to jump straight up a distance of 1.2m. How much kinetic energy does the 7.2kg dog need to jump this high? ( the acceleration due to gravity is 9.8m/s2)
Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 900 kHz. (9.00 · 105 Hz.)_____ m 2.70 x 1014 3.70 x 10-15 3.33 x 102 3.00 x 10-3
State what causes tides on earth
As the wavelength of electromagnetic radiation increases _______.