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Svetach [21]
11 months ago
10

What type of acceleration does an object moving with constant speed in a circular path experience?Select one:A) constant acceler

ation.B) terminal acceleration.C) linear acceleration.D) centripetal acceleration.E) free fall.
Physics
1 answer:
olga_2 [115]11 months ago
3 0

ANSWER:

D) centripetal acceleration.

STEP-BY-STEP EXPLANATION:

When a body performs a uniform circular motion, the direction of the velocity vector changes at every instant. This variation is experienced by the linear vector, due to a force called centripetal, directed towards the center of the circumference that gives rise to the centripetal acceleration.

Therefore, the answer is centripetal acceleration.

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A natural atom can be negatively charged by
svet-max [94.6K]

Answer:

By Gaining Electrons

Explanation:

A nuetral atom is negative when it gains electrons, and it can be positive when it loses electrons.

4 0
2 years ago
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sound is a longitudinal wave, and its speed depends on the medium through which it propagates. in air, sound travels at 343 m/s
melomori [17]

The speed of the sound wave in the medium, given the data is 3900 m

<h3>Velocity of a wave </h3>

The velocity of a wave is related to its frequency and wavelength according to the following equation:

Velocity (v) = wavelength (λ) × frequency (f)

v = λf

With the above formula, we can obtain the speed of the sound wave. Details below:

<h3>How to determine speed of the sound wave</h3>

The speed of the wave can be obtained as illustrated below:

  • Frequency (f) = 600 Hz
  • Wavelength (λ) = 6.5 m
  • Velocity (v) =?

v = λf

v = 6.5 × 600

v = 3900 m

Thus, the speed of the sound wave in the medium is 3900 m

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8 0
1 year ago
What is the equation for measuring the change in thermal energy?
Daniel [21]

Answer:

Explanation: I think...

Thermal Energy formula Q = mcΔT

Q = Thermal Energy(J)

m = Mass(kg)

c = Specific Heat(J/kg°C)

ΔT = Change in Temperature(°C)

you have to write the equation based on what you are working on

7 0
3 years ago
What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second
melomori [17]
It has a kinetic energy of 6 jules
5 0
3 years ago
find the mass and center of mass of a solid hemisphere of radius if the density at any point is proportional to its distance fro
statuscvo [17]

center of mass of a solid hemisphere of radius R is 3R / 8 and the Mass of the solid is M.

An elemental disc at a height of h from the base of the hemisphere is taken.

The mass of the elemental disc is taken dM

and the width is taken dy.

et the solid hemisphere be of mass M and has the radius R.

The center of mass will lie vertically which passes through the center of the hemisphere.

Taking the elemental disc at a height h from the base of the hemisphere’s base. The DM is the mass of the elemental disc and the width is dy.

the radius of the disc is:

R = R²- y²

Mass of the disc dM

= (3 M/ 2π R³) × ( πr² dy )                                   …..(2)

eq.(1)   in    eq.(2)..................

 dM = ( 3M  /  2 π  R³ ) ×  π (  R²  –   y²  )   dy)

Y - coordinate  of Centre of mass,

 Yc  =   (1 / M)  ഽ y  dM

Here y is the y - coordinate representing the height of the elemental disc from the base.

Putting the dM and calculating the center of mass, we get

yc= (1/M) ഽ  y(3M  /2 R^3) × ( R^2  -  y^2) dy)

Integrating between    0⟶R

yc = (1/M)   ഽ y  (3M / 2 R^3) × (R^2  -  y^2) dy)

yc = (  3/2r^3  )  ഽ × (R^3 y-  y^3 ) dy

   = (  3/  2R2)[ (R4 / 2 ) – ( R4 /  4)] = 3R / 8

yc =  3 R /8

Centre of Mass of solid hemisphere (yc) = 3 R / 8.

Mass of solid  =  M

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7 0
1 year ago
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