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3 years ago

What is third law of motion

Physics

2 answers:

Natasha_Volkova [10]3 years ago

6 0

Third law of motion states that every action has an equal and opposite reaction

RSB [31]3 years ago

5 0

$\huge \fbox \colorbox{teal}{ANSWER:-}$

Newton's Third Law of Motion states: 'To every action there is an equal and opposite reaction'. ... The Third Law of Motion indicates that when one object exerts a force on another object, the second object instantaneously exerts a force back on the first object.

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Help answer all for prize

marusya05 [52]

Explanation:

Average speed =total distance ÷ total time

speed = d ÷ t

d= 74400

t= 16

then,

speed = 74400÷16

=4650

5 0

3 years ago

a persons eardrum has an area of 0.000200 m^2. How much force does the outside air at 1.00 atm exert on the eardrum

alexdok [17]

Answer:

20.3N

Explanation:

Given parameters:

Area of the eardrum = 0.0002m²

Pressure on the eardrum = 1atm = 101325Nm⁻²

Unknown:

Force exerted on the eardrum = ?

Solution:

Pressure is the force per unit area impacted on a body.

Pressure = $\frac{Force }{area}$

Force = Pressure x area

Now insert the parameters and solve;

Force = 101325Nm⁻² x 0.0002m² = 20.3N

5 0

3 years ago

Suppose there was a star with a parallax angle of 1 arcsecond. How far away would it be? Select all that apply.

lesya692 [45]

Answer:

option E

Explanation:

given,

Parallax angle(d) = 1 arcsecond

using Parallax formula

$d = \dfrac{1}{p}$

p is the parsecs angle which is measured in 1 arcsecond

d is the distance in parsec

now,

$P = \dfrac{1}{d}$

$P = \dfrac{1}{1}$

$P = 1 \ parsec$

we know,

1 parsec = 3.26 light year

hence, the answer will be option E

6 0

4 years ago

Bailey wants to find out which frozen solid melts the fastest: soda, ice, or orange juice. She pours each of the three liquids i

777dan777 [17]

Answer:

its 45 over 6

Explanation:the answer is in the question

8 0

3 years ago

Read 2 more answers

A 28.0 kg child plays on a swing having support ropes that are 2.30 m long. A friend pulls her back until the ropes are 45.0 ∘ f

Dimas [21]

Answer

A)184.9J

B)=3.63m/s

C) Zero

Explanation:

A)potential energy of the child at the initial position, measured relative the her potential energy at the bottom of the motion, is

U=Mgh

Where m=28kg

g= 9.8m/s

h= difference in height between the initial position and the bottom position

We are told that the rope is L = 2.30 m long and inclined at 45.0° from the vertical

h=L-Lcos(x)= L(1-cosx)=2.30(1-cos45)

=0.674m

Her Potential Energy will now

= 28× 9.8×0.674

=184.9J

B)we can see that at the bottom of the motion, all the initial potential energy of the child has been converted into kinetic energy:

E= 0.5mv^2

where

m = 28.0 kg is the mass of the child

v is the speed of the child at the bottom position

Solving the equation for v, we find

V=√2k/m

V=√(2×184.9/28

=3.63m/s

C)we can find work done by the tension in the rope is given using expresion below

W= Tdcosx

where W= work done

T is the tension

d = displacement of the child

x= angle between the directions of T and d

In this situation, we have that the tension in the rope, T, is always perpendicular to the displacement of the child, d. x= 90∘ and cos90∘=0 hence, the work done is zero.

6 0

3 years ago

What is third law of motion​

What is third law of motion