a man hits a golf ball (0.2kg) which accelerates at a rate of 20 m/s what amount of force acted on the ball

Answers

Answer 1

Answer:
The ball only accelerates during the brief time that the club is in contact
with it. After it leaves the club face, it takes off at a constant speed.

If it accelerates at 20 m/s² during the hit, then

Force = (mass) x (acceleration) = (0.2kg) x (20 m/s²) = 4 newtons .

Answer 2

Answer: Force = mass * acceleration

F = 0.2 * 20 = 4 Newtons

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In what way does varying the length of a string of a violin change the vibration and how does this affect the sound that's produced?

Answers

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Which statement is the BEST definition of an atom? A) Anything that has mass and occupies space. B) The smallest particle that has the properties of an element. C) A substance that cannot be broken down chemically into simpler substances. Eliminate D) The smallest unit of a substance that exhibits all of the properties characteristic of that substance.

Answers

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Describe the energy transformations that occur when you bounce a ball?

Answers

The potential energy of the ball changes into kinetic energy.

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What are 3 uses of infrared radiation.

Answers

Remote controls
Security systems
Communication systems

uses of infrared radiationUsed in night vision devices to observe animals or people using the phenomenon called infrared illumination. The observant will not know that they are being observed.Used in astronomy to observe objects that are blurred and hidden by the interstellar dust. Infrared imaging process is used here.Used in astronomical telescopes that are equipped with infrared sensors and these telescopes are used to detect distant planets that are in the dusty regions of space, as they cannot be viewed using a normal telescope. They are also used to detect objects that have had a high red-shift (shifting of wavelength towards the red end of the spectrum).Used in infrared lamps (lamps that emit infrared radiation) and these lamps are used for drying paint, wallpapers and printing inks, to keep food warm, in heaters that are used during cold weather and in heat treatments in the field of medicineUsed in infrared lasers that produce infrared beams that can be used to read information on compact discs.Used in Infrared imaging devices that are used to obtain images of infrared radiation that are reflected or produced by objects, for example, heat insulation in buildings, sources of thermal pollution, mapping vegetation on the earth’s surface.Used in the chemical industry to determine molecular structure and composition of substances by studying their infrared emission or absorption.

Atoms from which two elements would form ionic bonds

Answers

Answer:

Explanation:

Ionic bonds are formed by transfer of electrons between metal and non metals. Electronic configuration of calcium: Calcium atom will lose two electron to gain noble gas configuration and form calcium cation with +2 charge.

hope this helps

A source of wave produces 20 crest sand 20 troughs in 0.4 sec. Find the frequency of the wave.

Answers

1 whole wave is 1 crest and 1 trough.

20 crests and 20 troughs is 20 whole waves.

20 waves / 0.4 seconds = 50 waves per second.

Frequency = 50 Hz

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