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leva [86]
2 years ago
12

What type of path does a moving object follow in the absence of a force?.

Physics
1 answer:
Amanda [17]2 years ago
3 0

Answer:

When there is no force acting on a body then a moving object move in a straight line with constant velocity and an object in rest stays in rest.

Explanation:

When there is no force acting on a body then a moving object move in a straight line with constant velocity and an object in rest stays in rest.

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sest yourse 1. A pencil lies on the dashboard of a car. a) i) What happens to the pencil when the car suddenly stops? suddenly a
julia-pushkina [17]

Answer:

1. the pencil would have the momentum and would keep going until it hits the windshield. 2. when the car suddenly accelerates, the pencil would be inert and it would move toward the back of the car until a constant speed from the car is reached.

8 0
2 years ago
Find the change in velocity of a 369 g hockey puck subject to the force shown below.
Elena-2011 [213]

Answer:

The change in velocity is 15.83 [m/s]

Explanation:

Using the Newton's second law we have:

ΣF = m*a

The force in the graph is 185 N, therefore:

185=0.369*a\\Where\\a=acceleration made it by the force [m/s^2]

a=501.35[m/s^2]

Now using the following kinematic equation:

V^{2}=Vi^{2} + 2*a*(x-xi) \\where\\V=final velocity [m/s]\\Vi= initial velocity [m/s] = 0 the hockey disk is in rest when receives the hit.\\ x = Final position [m] = 0.4 m\\xi = initial position [m] = 0.15m\\

Now replacing the values:

V^{2}=0 + 2*501.35*(0.4-0.15)\\ \\V= 15.83[m/s]

3 0
3 years ago
If the speed of light in a substance is 2.26 x 10^8 m/s, what is the index of refraction of that substance?
vladimir1956 [14]

Answer:

1.33

Explanation:

speed of light in vacuum, c = 3 x 10^8 m/s

speed of light in medium, v = 2.26 x 10^8 m/s

The refractive index of the medium is given by

μ = speed of light in vacuum / speed of light in medium

μ = (3 x 10^8) / (2.26 x 10^8)

μ = 1.33

4 0
3 years ago
A. Ears <br> B. Air <br> C. Water <br> D. Rocks
Marianna [84]

Answer:

A Ears

Explanation:

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6 0
3 years ago
5 ejemplos de ondas mecánicas PORFAVOR!!
kupik [55]

Answer: Una onda de sonido es un ejemplo de onda mecánica. Las ondas sonoras son incapaces de viajar a través del vacío. Las ondas furtivas, las ondas del agua, las ondas de los estadios y las ondas para saltar la cuerda son otros ejemplos de ondas mecánicas; cada uno requiere algún medio para existir.

English Translation: A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist.

Explanation:

6 0
2 years ago
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